Peter Bregman has some pretty good suggestions for What to Do When Anger Takes Hold.
"To succeed in life and in leadership, we need to act powerfully in the context of strong emotions and still have the impact we intend."
It's not in the having of strong emotions that we get in trouble. It's what we do with them that makes all the difference. Bregman offers a meditation discipline as training for unruly emotions.
I find that I often am realizing my emotions as they take place or after, and heading them off at the pass seems like a fantasy. I have experienced times of ease through meditation and confess I've gotten away from the discipline. This is a great challenge that it is both critical and wise to interact with our emotions in a healthy way, rather than letting them reappear down the road to more disastrous outcomes.