Dude I was there
If you recognize your anger than you have already started to work on it
What helped me was to never try and get rid of the anger, just keep it in a reserve tank for if and when its needed.
"IF" you do become peaceful, you will feel a greater satisfaction than those who never had an issue with it.

Something else that helps.

The more you gotta take a piss = the more relieving it is to let it go.

The hungrier you are, the more relieving it is to eat that delicious meal.

The more tired you are, the more relieving it is to lay down the entire body and rest.

The angrier you are, the more relieving it is to finally be at peace.