Find a way to vent your anger. Make it constructive, so you and possibly others can benefit from it. Physically laborious work would help. Think through your anger while you use a sledgehammer. Feels good, man. Play guitar. Get a beater guitar and do just that, beat it to hell. Don't play? Learn, it's never too late to learn anything you want. Right there, too. Learn something that allows you to vent it out. Good luck

Cognitive Behavioral Therapy offers a pragmatic and effective strategy for sorting your shit out.

Stop trying to teach other people lessons. Most people are actually retarded. When you are around retarded people, retarded things happen. Go volunteer to help down syndrome people.

Just some random thoughts:

Think before you act? Analyze the situation and think about what the consequences would be of different actions you could take. Why rush? Observe. Pay attention. Remember. Eventually it might click and you start to think on a meta level. You are not one of those who act on instincts/fee fees but you act consciously in all situations because you're not an NPC like the rest but you have full free will, and you take some pride in being made like this. While others would act you take a breath lean back and think to yourself "interesting", inside your head you see the chess pieces moving. In all things that you do you make sure that you feel that you made the right decision and that it makes you feel good, this feeling becomes your opiate, you want to feel it again and thus you enter positive spiral that propels you to ever increasing heights.

I think "take a deep breath" is often bad advice (subjectively, for myself). I find that holding my breath on empty lungs helps calm me. I'll hold until I feel I absolutely must breath, then take in a gentle breath, hold until I've quenched my thirst for oxygen (but preferably briefly), push out again and hold on empty lungs, repeat as many times as necessary.

Battling my primal urge to breath, however momentarily, seem to put other issues into a frame of reference. Most things bear much less significance than the urge to breath.

Vitamin D. Not even kidding.

Focus on how childish and cringey it is to 'lose control'. I've met a few men that were raised to think that losing emotional control, and the following physical tantrum, in whichever form it takes, is an expression of power. They saw their fathers lash out, and they emulate... it's not powerful to get angry, then lash out verbally or physically. It's the exact opposite, as it shows you never developed the skillset and mastery over your own being. Then realize how embarrassing your outbursts have really been percieved, and your ego typically will do the rest.....