Hello self. It’s hard to not overreact sometimes. I don’t know what it is but you have to have a way to remind yourself while you’re angry that this isn’t how you want to act when you’re angry. This may sound weird but plan in advance how you’d like to act when you’re angry and at least start putting that into your subconscious. When I get angry I was to speak in this tone and phrase things more like this. Run through it in your head a couple times and keep it holstered. Another way might be to think of people you know that handle situations really well. Maybe someone you admire for being so calm and collected. Try to act more like how you think they’d act.