My Unemployed Life: Am I Not Getting The Job Because I Don't Expect To?

One of the hardest things for me to do is keep applying for jobs while waiting to hear back on a job I interviewed for.

When I like and want that particular job, my heart just isn't in it to look for a different job. But I feel that I need to have other "irons in the fire" in case things don't work out. Then, even though I'd be disappointed if I'm rejected, I'd still have hope that one of the other "irons" will work out.