Not a psychiatrist or whatever but this sounds like a self-reinforcing issue, right? Like if you start to get upset, you notice yourself getting upset, and the noticing also gets your upset?
The only way to break those is to break the cycle, your mind gets in patterns. You notice that when you walk in the shower, if you pee right before the shower every time (I do, just out of habit) that when you even start thinking about a shower, you'll have to pee? Thats a self-reinforcing feedback loop just like the anxiety - each time you go pee because of the habit, it's reinforcing the habit. If you want to break that cycle, you have to not reinforce it every time.
Paradoxically, attempting to fight anxiety makes it worse. Thinking about it makes it worse. The only way is acceptance, saying "yes I'm having anxiety right now but it will pass" and not attempting to fight it. The cycle right now is, you have some anxiety, you get mad about the anxiety, then you get mad about getting mad not helping with the anxiety. You have to break that cycle. Breaking the cycle requires not fighting it.
I 1000% realize this is easy to say and hard to do, and I'm sure you've heard this advice before. Just rustles my jimmies to see bros suffering.