Get some time and space to yourself, 10 to 30 minutes, depending on the complexity of the situation. Think about exactly who/what you are angry with, and why (including yourself*). Don’t worry about solving it, just get it front and center in your mind. Pile up a huge number of couch cushions. Beat the ever livin’ fuck out of them with your fists and feet until you break down or wear yourself out. Repeat as necessary.

*Note: One of the reasons some emotional things never die is because we try to solve them without including ourselves from the equation: we see forgiveness is needed but we don’t include ourselves, for example, or guilt needs addressing but we don’t want to measure our own part in it because someone else’s betrayal was so overwhelming, thus it’s almost unbearable to think of the self as participatory in that destruction. Yet those are examples of exactly the kind of inner situation that keep us stuck in unhealthy emotional patterns. If you really want to get out of an emotional trap, including anger that doesn’t quit, and you think you’ve tried everything, try specifically looking for exactly what you don’t want to see about your own part in it.