(((Hellion)))
I've had a few TBI's myself, like Wolfin3, and the results do last forever! By the wording of your post, it sounds as though you are aware of this dangerous potential. That's good!

The trick is to find some healthier ways to release your intense emotions without permanently damaging your brain.
You could try screaming into pillows; chomping on carrots; buying & hitting a dummy or punching bag; hmmmmm..... Those are the only ideas I've been able to come up with. It sounds as though you get intense energy surges and you want to GET IT OUT. Anger? Have you talked to a T about these tendencies that you struggle with?
Gentle hugs to you.