I only have a problem during trading, once the trading day is over I'm calm and everything is fine. During trading a few losses can turn me into a completely different person. As immature as it sounds I throw things around and I've damaged so many things over the years it's just stupid. Expensive things as well.
It can't be good for my health either!
I go the Gym every morning and lift heavy weights to relieve any stress (and it's a hobby) but if anything this seems to make things worse

Just today after losing about £100 in a few races I've ruined my new desk, since I've been fine and pulled my loss back.
Also in anger I have made some crazy trades using my full bank and needless to say it's gone horribly wrong ruining my whole week sometimes worse.
Anyway, has anyone overcome this problem? I need to if I want to continue trading for a living.