Somebody help

Set your goal on improving (the process) instead of winning (the result).

You can either figure it out and control yourself, or ask support to temp ban you/deactivate your account.

Did you also recently go on a win streak and start getting excited at the idea of climbing? Or you won a lot and started thinking youre good? That happens to me sometimes. I feel validated that im actually a good player, and it inflates my ego and gives a sense of superiority. Then i notice myself actually getting mad at my allies for getting outplayed. Then i stop playing as much, go back to being casual and thinking im bad, and suddenly the game is fun again and im laughing about my and my teammates' shitty plays.