Nah, I don't think you're being selfish. It's kinda...basic courtesy and stuff. And it shouldn't even have to be part of 'manners' if you're friends. Although the other party might have just had a bad day or been going through rough times.

Well, it's not good taking your anger out on other people, honestly. I remember there was this game on Newgrounds where you could pick various ways to kill your 'boss'. Can't remember what it was called, but maybe you should look for that and play.

This may not be good advice, but I think you should just take things slowly and one at a time. Maybe you're burnt out because you're trying to do too many things at one go unneccesarily.

Cheer up soon, 'kay?