Wow. I'm sorry to hear that something like this happened to you. The randomness and violence of that attack is disconcerting.

I empathise with your predicament. Having also been a laid-back person before my concussion, I too am prone to rapid mood swings associated with verbal outbursts. These happen all too often, and there's a lot of guilt that ensues afterwards. In addition, I too also struggle with impulsivity. And lastly, I also get the slow healing perspective... improvements are few and require significant hindsight to really determine if any improvement has occurred. When I do this, I can see some changes and try and focus and tell myself that they will continue to occur, and that things will get better.

I sincerely hope things improve for you Deja... best wishes!