I recommend that you see a therapist. My therapist's practice is mindfullness-based, which I highly recommend. One of the things I've learned is how to look at all my own italicized parenthetical statements as the bullshit excuses they are. The monkey-mind is what's making up all those stories that you tell yourself about why X is impossible -- it's telling you that you can't possibly found a startup because you've had difficulties refactoring some Java? Come on now. Just pick one of those goals and go for it. Don't pay attention to any of your excuses.

A wise friend once told me "If someone else can do it, you can totally do it."