Why do I have obsessive, compulsive, and childlike reactions to things I don't like?

You just have to relax, you will always have somebody criticizing you on something. Stating the obvious this is probably one of the reasons you have had not as many friends as you would of liked to have! Try and take criticism optimistically, It seems to me you take both good and bad criticism badly. if something say's something good about you, that's it, don't get cocky! I think all you need to do is control the way you take it!