Rejection sucks. It's taken years of drinking over it to soften its blow. Some rejection bothers me today, but not as much.
I avoid situations that opens the door to rejection because I can't handle it, like dating. I've dated a stranger twice in my life. Everyone else has been someone that I have known for awhile where we just have sex and shack up.
I've realized the difference of rejecting the idea over rejecting me. Rejecting me hurts. Rejecting the idea just pisses me off because I have great ideas!