what do you do when you are really angry/upset about something and need to "let off steam"/regroup/regain your composure/calm down?

I sometimes hit my punchbag to let off steam.

Or I will have a rant and say "No **** off! thats ****ing stupid! what a load of ****!" or something. But thats usually while Im angry not to let it off.

Get some *****, work out, drink, listen to some music, or take a nap.