Is it normal that i relive anger this way

You should never hurt yourself in even the smallest way from anger, you should take an anger management class it might really help you control the urge to do those things.

I think you should find some other way to relieve your anger. Physical anger is not a good way to relive it. It can lead to some serious shit down the road turning into other physical anger. Also you're causing damage to yourself which isn't good. I know it might sound gay but why don't you keep an "anger notebook"? Everytime you get pissed about something, write down the whole "who, what, when, where, why and how" by the time you're finished writing it you're getting it all out and might feel better by the end of it. At least try it, if it doesn't work, try someone elses suggestion :)

ooft.

Better then punching someone =)

Some people wear hair bands around their wrists and snap them alot to relieve anger and stress.