If you have a working that can alleviate or transmute anger(or any emotion)
This will sound woo but it really helps
So: anger gets more intense when it feels it isn't being listened to. It shouts louder to be heard. Obviously you don't want to act on your anger and so you probably tend to dismiss it, "there's no point being angry, there's nothing I can do about the situation right now, shut up and go away". But if I was angry, and you told me I was being ridiculous, shut up and go away, that would not make me less angry. So it's got flaws as a strategy.
There's a process (called "Focusing" with a capital F) that involves being
with the emotion but not being
inside it. Like you're sitting next to the anger, but you're not identifying as "angry". So when you have 10 or 20 minutes to yourself, sense where you feel the anger in your body, and describe it to yourself ("i feel a hot tightness in my stomach" or "it's like a fuzzy red cloud around my throat" or however it shows up for you)
Then you talk to the anger, to that place in your body, as though it's a separate entity (but it's also a part of yourself, so talk to it nicely). This is the woo part. The attitude is "curiosity and compassion". You say, in your own words, "I'm not going to try and change you or tell you to stop feeling angry, I just want to get to know you"
Some questions to ask it:
Does it have a message for you, something it wants you to know?
What does it see its job as?
How long has it been doing this job? (Maybe since you were little)
Is it protecting you from something?
What is it worried will happen if it stops doing this job?
You don't try and change it, you just validate it, like you were talking to a kid. "No wonder you're getting angry all the time, if you think getting angry protects me from [whatever it said]"
You don't have to change anything. When it knows it can get your attention without shouting, it will be a much milder emotion. Everyone wants to feel heard.
You have to go a bit slow with this - it often seems like there's no response and couldn't be one, you're just taking to your own chest like an idiot, but if you wait, the response does appear. Sometimes when anger feels heard and listened to, it doesn't respond with words, but you feel something physically tighten or relax
If you find out that it's angry for something kind of petty and childish, don't say "that's a stupid, petty thing to feel angry about" because anger doesn't get less angry when you dismiss its concerns. It sort of is like a child: things that aren't a big deal to your whole self can be a big deal to this smaller part of you. Keep focusing on the feeling in your body, where the emotion seems to be living
If you're thinking "this is stupid", you can treat that thinks-its-stupid emotion like like you're treating the anger that isn't the whole you. "Okay, I hear that you think this is stupid, and maybe it is, but would it be okay to step out of the way so we can try it just as an experiment?"
Full process of Focusing is in this book:
You might as well give it a shot: it's free and quick so no real loss if it doesn't help. But it has helped me, way more than traditional therapy.