I know you don't believe them...that's the battle you are going to have to fight (and you can do it...don't think you can't).

Print them out so you can see them. Even if you don't believe them. Print out the nice things people have written to you here. Heck, I'm thinking decoupage all over the walls!

Find one thing. Just one. No matter how insignificant and latch onto that for dear life. Keep telling yourself this one thing, until you believe it. Then pick another. You can do it!