Anger!

Salams brothers and sisters,

This is my first post on Sunni forum alhamdililah I finally developed the courage to put my questions to the public..

I've had a hard life when it comes to dealing with aggression and anger.. It's safe to say that I have a problem.. It takes really minor things to get me worked up and when I am I become extremely violent uncontrollable as if something comes over me.. I'm always aware of what's going on but feel the need to just continue.. I've tried the western ways of dealing with anger.. Speaking to someone about it, medication, group meetings and such but feel like there is no progression..
The best thing that happened to me was getting engaged to my beautiful fiancé who is very understanding.. But recently I feel that even she doesn't have what it takes to contain me.. Which isn't what I want to bring I my relationship nor to my new family..

I was just wandering if there is any duas that help to relief the anger that I can say when I feel it coming on, or one that I say during the day..
And if if there are any teaching on how to deal with anger..
Thank you and on look forward to hearing from you

Salams