AnnaSophia Robb admits that being a working actress and full-time student at NYU can be tough -- but a new partnership with A21, a non-profit that works to eradicate human trafficking, reveals that she's not close to slowing down.
"I'm pretty overwhelmed. I'm really stressed out, but I feel really excited. It'll be good. As you get older, life gets crazier, right?" she told AOL in an exclusive interview.
Robb, probably best known for her roles in "Bridge to Terabithia," "Charlie and the Chocolate Factory" and recently, the "Sex & The City" prequel series "The Carrie Diaries," became a human rights activist when she learned about the prevalence of human trafficking today.
"I remember learning about human trafficking and slavery when I was in the 8th grade, and I didn't realize it was still an issue ... Just because it's not an issue that's regularly talked about in media and in America," she said. "But it's such an injustice and it brings in so much money and it really affects all countries around the world."
Click through to see AnnaSophia Robb through the years:
AnnaSophia Robb through the years
Actress AnnaSophia Robb speaks out against human trafficking
AnnaSophia Robb (Photo by Theo Wargo/WireImage for 20th Century Fox Studios)
Annasophia Robb (Photo by Steve Granitz/WireImage)
Annasophia Robb Attends The 'Charlie And The Chocolate Factory' Uk Film Premiere In London. (Photo by Justin Goff\UK Press via Getty Images)
Annasophia Robb during 'Bridge to Terabithia' Los Angeles Premiere - Arrivals at El Capitan Theater in Hollywood, California, United States. (Photo by Jason Merritt/FilmMagic)
AnnaSophia Robb during 'The Reaping' Los Angeles Premiere - Arrivals at Mann Village Theater in Westwood, California, United States. (Photo by Jason Merritt/FilmMagic)
Actress AnnaSophia Robb arrives at the world premiere of 'The Game Plan' at the El Capitan Theatre on September 23, 2007 in Hollywood, California. (Photo by Jason Merritt/FilmMagic)
Actress AnnaSophia Robb arrives at the 13th ANNUAL CRITICS' CHOICE AWARDS at the Santa Monica Civic Auditorium on January 7, 2008 in Santa Monica, California. (Photo by Jeff Kravitz/WireImage)
Annasophia Robb at the 'Sleepwalking' press conference at the Four Seasons Hotel on March 7, 2008 in Beverly Hills, California. (Photo by Vera Anderson/WireImage)
Actress AnnaSophia Robb during Nickelodeon 's 2008 Kids' Choice Awards held at the Pauley Pavilion on March 29, 2008 in Westwood, California. (Photo by Kevin Mazur/WireImage)
HOLLYWOOD, CA - MARCH 30: Actress AnnaSophia Robb arrives at the the 'Soul Surfer' Los Angeles Premiere at ArcLight Cinemas on March 30, 2011 in Hollywood, California. (Photo by Lester Cohen/WireImage)
Actress AnnaSophia Robb arrives at the Spirit Awards in Santa Monica, California on February 26, 2011.This is the 26th annual Spirit Awards, Film IndependentÂs event which honors films made by filmmakers who embody independence and originality. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)
NEW YORK, NY - MARCH 25: AnnaSophia Robb is seen on the movie set of 'The Carrie Diaries' on March 25, 2012 in New York City. (Photo by Ignat/Bauer-Griffin/GC Images)
NEW YORK, NY - MAY 17: (Exclusive Coverage) AnnaSophia Robb attends the party for the CW Network's 2012 Upfront at Colicchio & Sons on May 17, 2012 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - FEBRUARY 09: AnnaSophia Robb at the 'The Carrie Diaries' Press Conference at the London Hotel on February 8, 2013 in New York City. (Photo by Vera Anderson/WireImage)
TODAY -- Pictured: AnnaSophia Robb appears on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
NEW YORK, NY - MARCH 02: H&M celebrates 'Denim Days' with Seventeen Magazine and actress AnnaSophia Robb at H&M Fifth Avenue on March 2, 2013 in New York City. (Photo by Bryan Bedder/Getty Images for H&M)
NEW YORK, NY - JUNE 28: Actress AnnaSophia Robb attends Apple Store Soho Presents: Meet The Filmmakers - 'The Way,Way Back' at Apple Store Soho on June 28, 2013 in New York City. (Photo by Monica Schipper/Getty Images)
NEW YORK, NY - FEBRUARY 06: AnnaSophia Robb, wearing Alice + Olivia, walks the runway at Go Red For Women - The Heart Truth Red Dress Collection 2014 Show Made Possible By Macy's And SUBWAY Restaurants at The Theatre at Lincoln Center on February 6, 2014 in New York City. (Photo by Frazer Harrison/Getty Images for Mercedes-Benz)
NEW YORK, NY - SEPTEMBER 05: AnnaSophia Robb is seen during Mercedes-Benz Fashion Week Spring 2015 at Lincoln Center for the Performing Arts on September 5, 2014 in New York City. (Photo by John Parra/WireImage)
NEW YORK, NY - JULY 14: AnnaSophia Robb is seen on July 14, 2015 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - FEBRUARY 16: AnnaSophia Robb attends the Alice + Olivia fall 2015 fashion presentation at The Prince George Ballroom on February 16, 2015 in New York City. (Photo by Taylor Hill/FilmMagic)
NEW YORK, NY - SEPTEMBER 16: Actress AnnaSophia Robb is seen arriving at Marchesa fashion show during Spring 2016 New York Fashion Week at St. Regis Hotel on September 16, 2015 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)
A21 approaches human trafficking holistically -- working on prevention, protection for victims, prosecution of perpetrators and partnering with governmental organizations to work on legislation.
"They kind of go at it at all angles, and it's all survivor-centered. They don't have an agenda except for helping a really worn woman get back on her feet. They don't exploit who they help. It's very tasteful. Sometimes with non-profits they use the people they help to just get press."
The organization is also headquartered in Orange County, which is actually one of the largest hotspots for human trafficking in the U.S.
"You would never think it -- but it's something you need to peel your eyes and look a little deeper and look behind the layers of society," Robb said.
Whether it be human trafficking or another social issue, Robb said society as a whole doesn't do enough "digging."
"It's just a matter of looking around and being like, 'What do I see that doesn't seem right in the world?' I want to talk about that and how can I make that better. You can do that in your school, in your workplace, in your career, grocery store," she said.
"I think as people -- no matter what you do or what environment you're in or what job you have -- we have a responsibility to be socially aware. Our surroundings and the power of our voice. Being able to take advantage of that."
The young starlet may be just getting started with A21 -- but she's invested in the issue of human trafficking long-term, like other celebs before her who have used their platform for good, including Charlize Theron, who Robb admires for doing "an awesome job of not putting the attention on herself and working behind-the-scenes at a ground level."
"This is going to be a life journey," she said. "Selling someone is wrong. We established that hundreds of years ago -- and the fact that it's still going on today is a problem."