Anger is one of those emotions that is very hard to control. I know from experience that anger can have damaging consequences. In my youngers years I've gotten 'blackout' angry, never gotten violent, but I've been angry enough that I thought I'd give myself a coronary.

If I feel anger coming on , it is best that I force myself to leave immediately. Take some time and really think about the situation, do something proactive instead of reactive. ie. take a walk, write your feelings down, do something creative, deep breathe. Remind yourself after you walk away that you don't have to react right now, you can look at it later.

There are also some great anger management support groups out there. If you're not willing to do that, maybe get a self-help book. There are many to choose from that help to give you alternatives and coping strategies.
One book that comes highly recommended is 'The Anger Habit'
Best wishes.