Hi @Overwhelmed21 and welcome, I'm also new.
I can't remember any personal experiences with volcanic anger other than being on the receiving end of it from my biological father, before severing ties for my own sanity.
I went through an anger management course after assaulting an elderly woman - I got fed up with her verbally abusing me (and others) in my home and marched her out the door, which was enough.
Looking at my notes from the course, one thing I found helpful with examining my own behaviour was the framing they gave:
A - Activating Event. The thing that set you off
B - Beliefs. The thoughts and ideas you had before and during the event.
C - Consequences. What happened as a result of the actions that you and the other party/ies took.
Analysing what happened that way gave me a way of reflecting on my actions and considering some alternatives, like strategic withdrawal (walking away, asking for a time-out from the other person), diplomacy, or respectful assertiveness (see below)
Another good framing the psychologist I was seeing at the time taught me was the difference between passiveness, aggressiveness, and assertiveness.
passive - taking the harassment without a response, or agreeing to minimise it (appeasement).
aggressive- lashing out in response, verbally, non-verbally, or with a physical attack or retribution.
assertive - Being able to express your feelings, thoughts, beliefs and opinions in an open manner that doesn't violate the rights of others.
All the best and remember you're never alone.