How to stop being toxic in 2 easy steps.
Step 1. Turn off team chat + all chat. Alternatively, /fullmute all. Step 2: Turn on this here youtube video while you play: https://www.youtube.com/watch?v=OqZi4p4imUw&t=3240s Optional step 3: Play a champion with sweet or inspiring quotes, like Aurelion Sol, Ivern, Garen, Zac.
You will NEVER flame. The music is so amazingly nostalgic and calming, plus the ambient thunderstorm noises make it very soothing to listen to and will quickly calm you down if you're getting heated - if you're playing one of the aforementioned champions, that's another plus.
I'm a pretty toxic player and when I played while listening to this, I had no desire to flame even when my teammates did silly things. Even when my Kai'Sa started to flame me for being useless and to get out of her elo despite the fact that it was a normal, I was chill. The music was nostalgic and relaxing, and it let me think clearly past my competitive brain for once.
Maybe it won't work for everyone, but god listening to this music seemed to make me a different player.