Hi Jenib, sorry to hear of your injury.

Question, was this by any chance a frontal injury? If so, this could be a case of disinhibition. Some of your self-control mechanisms have been compromised, as these are resident in the brain's frontal lobe areas (so-called Executive Functions).

Also, when you say you're angry all the time, is this literally true, or is the anger just episodic and frequent? If it is episodic, your goal is to minimize the duration of the anger sessions.

The biggest hurdle is precisely what you stated- it's hard to recognize an anger episode as it's happening, making any other anger management tool irrelevant. I've found that this is a basic skill to be learned before any other. It won't happen overnight. The goal here is to recognize the session as early as you can. Hopefully you'll find the time gets shorter and shorter, until you get to the point of recognizing it as soon as it starts. Sometimes you can even peg it before actual onset, and head it off.