I don't know why I do the things I do
You can't think of a single reason?
I don't know why, I guess I just want to do them.
That's a start. You must be getting some kind of reward or you wouldn't do the things you're doing. If your life is going well, that's fine, but if it's not, you need to find out why and adjust.
It's not my fault. I shouldn't have to change anything.
You should try to figure your life out. You don't need everything figured out but some sort of goal or direction would be good.