I am a religious FPS player, I got more than 20k hours in FPS games combined and I always play on highest level.

However, I lose my mind over every mistake no matter if my teammate did it or me, I never flame my teammates and I was never toxic, even when I am losing my mind I never tell my teammates anything that would insult them, I just keep it to myself.

For other people 1-1 is just "we're doing well" but for me it's 1 round we gave away for free, I lose my mind over things I can't control and then I play bad because of the anger distracting me. I believe that I would play much much better if I stayed calm but I don't know where to start.

Anything helps :)