give yourself time to feel the anger
then slowly piece by piece put it away
and replace each piece with one good thing
it can be any small good thing
from "hey I woke up today"
to "I love my breakfast"
to whatever works for you

when you shovel a huge pile of dirt
you take one shovelful at a time
kind of the same deal here

I dunno if this helps

Hmm but won't I just bury further down that anger instead of getting rid of it ?

no you replace the anger
with something good

There's a reason I've never been drunk. ;)

No tips from me though. Installing a punching bag might work wonders, or just finding some way to vent it, that might even be non-physical.

punching bags are great