Seriously, watch the merchant of venice
Helped me ALLOT!!!
I'm not angry, i am aggressive sometimes (which don't bother me) but i have a huge issue with striking back at ppl when they disrespect me (which does bother me allot) Makes me a slave to them and i hate that.
I watched TMOV and it really helped, especially the court scene. It might not be your thing but stick with it i bet you won't regret it.