I have been hitting my self in the head since I was a kid. Very young 8 or 9 I think. I get so angry or frustrated that I ball up my fists and punch my head violently while screaming. I have not done this in a while thankfully. But from time to time I still do this. I don't know why. I just feel so worthless and stupid and don't know what to do. I have also banged my head into the wall and nearly knocked my self out. This is a very dangerous thing. I hate when I loose control.