My therapist gave this to me to read when I am in a rage and find that my anger is controlling me. I hope that you find it useful.

CONFRONTING THE PROVOCATION
Stay calm. Just continue to relax.
As long as you keep cool, you're in control.
Don't take it personally.
Don't get all bent out of shape, just think of what to do here.
You don't need to prove yourself.
There is no point in yelling.
You're not going to let them get to you.
Don't assume the worst or jump to conclusions.
Look for the positives.
It's really a shame this person is acting the way they are.
For a person to be that irritable, they must be really unhappy.
There is no need to doubt yourself, what they say doesn't matter.

Your muscles are getting so tight, it's time to slow things down and relax.
Getting upset won't help.
It's just not worth getting so angry.
You'll let them make a fool of themselves.
It's reasonable to get annoyed, but let's keep a lid on it.
Time to take a deep breath.
Your anger is a signal of what you need to do.