Kirstie Alley recently stunned fans when she revealed she shed 50 pounds for the new year -- and this time, she says, she's keeping the weight off.
"My three options were to roller coaster forever, to just stay heavy or get myself to where I want to be and keep myself thin," she told AOL in an exclusive interview. "This time I actually think I'll keep myself thin."
It's been a 10-year journey for the former "Cheers" star, who said it takes her three or four attempts to kick a bad habit because she likes to "try to get away with things." Take her much-publicized cocaine addiction, for example.
"I used to do a lot of cocaine thirty years ago. But then I go 'Okay, that's it -- I'm not really going to do any more cocaine,' and I wouldn't do any more cocaine for like six months," she said. "I just like to push things to the limit, and if I find things that I like doing that aren't good for me, I somehow try and make it good for me. I thank God that I don't like murdering people."
Click through to see Kirstie through the years:
Kirstie Alley through the years
Kirstie Alley sets the record straight about her heaviest weight ever
CHEERS -- Pictured: (l-r) Ted Danson as Sam Malone, Kirstie Alley as Rebecca Howe (Photo by NBC/NBCU Photo Bank via Getty Images)
CHEERS -- Season 7 -- Pictured: Kirstie Alley as Rebecca Howe -- Photo by: NBCU Photo Bank
Kirstie Alley (Photo by Ron Galella/WireImage)
WESTWOOD, CA - FEBRUARY 4: Actress Kirstie Alley attends the 'Shoot to Kill' Westwood Premiere on February 4, 1988 at the Mann Westwood Theatre in Westwood, California. (Photo by Ron Galella, Ltd./WireImage)
Kirstie Alley (Photo by Jim Smeal/WireImage)
American actress Kirstie Alley with her husband, actor Parker Stevenson, circa 1990. (Photo by Kypros/Getty Images)
THE TONIGHT SHOW STARRING JOHNNY CARSON -- Pictured: (l-r) Actors John Travolta and Kirstie Alley during an interview with host Johnny Carson on December 13, 1990 -- (Photo by: Alice S. Hall/NBC/NBCU Photo Bank via Getty Images)
Kirstie Alley (Photo by Jim Smeal/WireImage)
VAN NUYS, CA - SEPTEMBER 28: Actress Kirstie Alley attends the Narconon's 12th Annual Celebrity Softball Game on September 28, 1991 at the Tom Bradley Stadium @ Birmingham High School in Van Nuys, California. (Photo by Ron Galella, Ltd./WireImage)
CHEERS -- 'One for the Road' Episode 25 -- Air Date 05/20/1993 -- Pictured: Kirstie Alley as Rebecca Howe (Photo by Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode -- Pictured: (l-r) Actress Kirstie Alley during an interview with and host Jay Leno on April 21, 1995 (Photo by Margaret Norton/NBC/NBCU Photo Bank via Getty Images)
Kirstie Alley at the Hollywood Boulevard in Hollywood, California (Photo by Jim Smeal/WireImage)
285399 01: Actress Kirstie Alley makes a public appearance October 26, 1996 in New York City. Before starring in the NBC sitcom 'Veronica's Closet,' Alley played Rebecca Howe on the sitcom 'Cheers' for which she was awarded an Emmy, a Golden Globe and a People's Choice Award. (Photo by Evan Agostini/Liaison)
Kirstie Alley in a scene from the film 'For Richer Or Poorer', 1997. (Photo by Universal/Getty Images)
CENTURY CITY, CA - DECEMBER 5: Actress Kirstie Alley and actor James Wilder attend the 'Deconstructing Harry' Century City Premiere on December 5, 1997 at the Cineplex Odeon Century Plaza Cinemas in Century City, California. (Photo by Ron Galella, Ltd./WireImage)
THE TONIGHT SHOW WITH JAY LENO -- Episode 1283 -- Pictured: (l-r) Actress Kirstie Alley during an interview with host Jay Leno on December 12, 1997 -- (Photo by: Margaret Norton/NBC/NBCU Photo Bank via Getty Images)
HOLLYWOOD - NOVEMBER 10: Actress Kirstie Alley attends Ted Danson's Hollywood Walk of Fame Star Ceremony on November 10, 1999 at 7021 Hollywood Boulevard in Hollywood, California. (Photo by Ron Galella, Ltd./WireImage)
1999-2000 Kirstie Alley In 'Veronica's Closet.' (Photo By Getty Images)
Kirstie Alley at the Morton's in Beverly Hills, California (Photo by John Shearer/WireImage)
Kirstie Alley of 'Fat Actress' during Showtime TCA Press Tour Party - Red Carpet at Universal Studios in Universal City, California, United States. (Photo by L. Cohen/WireImage)
HOLLYWOOD - FEBRUARY 23: Actress Kirstie Alley attends Showtime's Premiere of 'Fat Actress' at the ArcLight Cinerama Dome on February 23, 2005 in Hollywood, California. (Photo by Stephen Shugerman/Getty Images)
HOLLYWOOD - FEBRUARY 23: (US TABS AND HOLLYWOOD REPORTER OUT) (L-R) Actress Kelly Preston and actress Kirstie Alley attend the after party for Showtime's Premiere of 'Fat Actress' at the Geisha House on February 23, 2005 in Hollywood, California. (Photo by Stephen Shugerman/Getty Images)
HOLLYWOOD - MAY 04: Actress Kirstie Alley arrives at the Paramount Pictures fan screening of 'Mission: Impossible III' held at the Grauman's Chinese Theatre on May 4, 2006 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)
Kirstie Alley, presenter (Photo by Maury Phillips/WireImage)
TODAY -- Pictured: (l-r) Meredith Vieira and Kirstie Alley appear on NBC News' 'Today' show (Photo by Peter Kramer/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - MARCH 09: Kirstie Alley and Kelly Preston arrive at Kirstie Alley's Organic Liaison Store Grand Opening on March 9, 2011 in Los Angeles, California. (Photo by Alexandra Wyman/WireImage)
DANCING WITH THE STARS - 'Episode 1201' - A star-studded cast filled with celebrities across a variety of genres are set to compete each week on the dance floor. Performing either the Foxtrot or the Cha Cha Cha, all 11 couples danced for the first time on live national television in the spectacular two-hour season premiere of 'Dancing with the Stars,' MONDAY, MARCH 21 (8:00-10:02 p.m., ET) on the ABC Television Network. (Photo by Adam Larkey/ABC via Getty Images)KIRSTIE ALLEY, MAKSIM CHMERKOVSKIY
LOS ANGELES, CA - MARCH 28: Actress Kirstie Alley attends Cheryl Burke and Chris Jericho's book signing at Barnes & Noble bookstore at The Grove on March 28, 2011 in Los Angeles, California. (Photo by Beck Starr/FilmMagic)
HOLLYWOOD, CA - MAY 02: Kirstie Alley arrives at Cheryl Burke's 27th birthday celebration at BoHo Restaurant on May 2, 2011 in Hollywood, California. (Photo by Angela Weiss/Getty Images)
DANCING WITH THE STARS - 'Episode 1207' - 'Dancing with the Stars' celebrated 'Ballroom Greats' week, MONDAY, MAY 2 (8:00-10:01 p.m., ET/PT), on the ABC Television Network. Serving as guest judge, alongside Carrie Ann, Len and Bruno, was Donnie Burns MBE, the most decorated Latin dancer of all time and head of the World Dance Council. Each couple, who danced a style they had yet to perform, received a 'master class' from one of ballroom's best, either former Latin World Champion Shirley Ballas or Luca Baricchi, former Ballroom World Champ. (Photo by Adam Taylor/ABC via Getty Images)KIRSTIE ALLEY, MAKSIM CHMERKOVSKIY
Actress Kirstie Alley (R) and Maksim Chmerkovskiy arrive to the 'Pirates Of The Caribbean: On Stranger Tides' World Premiere at Disneyland on May 7, 2011 in Anaheim, United States. (Photo by John Shearer/WireImage)
Kirstie Alley arrives at the 2011 All The Right Moves Summer Invitational at the Manhattan Center Grand Ballroom on June 5, 2011 in New York City.
THE VIEW - (6.20.11) Actress Kirstie Alley was guest co-host today, Tuesday, June 21, 2011 on 'The View.' 'The View' airs Monday-Friday (11:00 am-12:00 pm, ET) on the ABC Television Network. (Photo by Donna Svennevik/ABC via Getty Images)WHOOPI GOLDBERG, KIRSTIE ALLEY
NEW YORK, NY - SEPTEMBER 13: Actress Kirstie Alley walks the runway at the Zang Toi Spring 2012 fashion show during Mercedes-Benz Fashion Week at The Studio at Lincoln Center on September 13, 2011 in New York City. (Photo by Jason Kempin/Getty Images for Mercedes-Benz Fashion Week)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4154 -- Pictured: Actress Kirstie Alley during an interview on November 28, 2011 -- Photo by: Paul Drinkwater/NBC/NBCU Photo Bank
NEW YORK, NY - DECEMBER 03: Actress Kirstie Alley attends the 'Kirstie' series premiere party at Harlow on December 3, 2013 in New York City. (Photo by Noam Galai/WireImage)
TODAY -- Pictured: (l-r) Matt Lauer and Kirstie Alley appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
NEW YORK, NY - JANUARY 05: Kirstie Alley attends the 'Girls' season four premiere at American Museum of Natural History on January 5, 2015 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - JANUARY 06: Actress Kirstie Alley visits the SiriusXM Studios on January 6, 2016 in New York City. (Photo by Cindy Ord/Getty Images)
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Even though the actress says weight loss success is all about "mindset," the decade-long journey also included some help along the way. Through years of struggling with her weight in the public eye, Alley started to feel a sense of "responsibility" for her actions.
"At first, when I was a spokesperson for Jenny Craig, it was all about me -- I want to get thin, I want to do this, me, me, me, me. And then I realized that it actually helped other people. I've gotten thousands and thousands of letters or messages from people who lost weight because of me."
While she received a lot of support from those who saw her as an inspiration, Alley admitted it hasn't been an easy ride.
"People are always like, 'You're so brave.' I'm not brave. I walk out of the house and its on the corner of every magazine. I mean, what am I going to do?"
Plastered on magazine covers also included false tabloid stories that hit home for her, especially when it came to false numbers about her weight. (For the record, her heaviest weight was 230 pounds, not 300 as many outlets reported.)
But there's one story from years ago that still makes her laugh today.
"This is the funniest one -- It was not even when I gained weight. It was years ago, that I loved chocolate so much that I ate about 200 pounds of chocolate a month, and I had a train that brought chocolate in from Europe ... I don't know how the train got from Europe to the United States!"
There weren't any transcontinental trains of chocolate then ... And there definitely won't be anytime soon. Alley is on track to stay thin thanks to a new partnership with Jenny Craig, which includes a personal consultant and a range of new healthy food options.
The star kicked off her new campaign with an incredible commercial shot on an exact replica of her old "Cheers" set -- which even brought back her castmates, Cliff and Norm (John Ratzenberger and George Wendt) for the incredible ad.
The spot marks the first time the trio has reunited on-set of the iconic comedy -- but it wasn't all laughs and smiles.
"It was sort of bittersweet," Alley revealed. "The set was an exact replica, and we were there all day hanging out, falling back into the groove of it, and then when we were done. We're so used to being on the show and then coming back the next morning to shoot, so that was like, 'Bye, we have to strike the set again.' "