I'm posting back to back this morning because I'm overwhelmed with self pity at the moment. 

I'm in college and will spend weeks working on a project just to delete it the night before because I couldn't fathom being proud of something.  

I do this all the time
I'm okay with negative feedback as I was bullied growing up and I went to performance high school where we took feedback classes throughout the years. I'd say I'm better prepared to take negative feedback than positive.

I totally freeze up and I've even feinted in class when I receive praise or positive feedback from peers. I sure as hell am too scared to participate in improv jams even though it's a part of my daily practice.