I started playing poke champions and my toxicity is gone.
Before I used to play pretty much exclusively squishy all-in melee champions like Zed, Akali, Riven and that kind of stuff. As a victim, I realized that Riven players aren't toxic by nature, the champion itself makes them toxic. I would go 12/2 and outfarm my enemy laner by 100cs and still be unable to carry.
Poke/waveclear champions like Xerath, Orianna, Ziggs on the other hand are so chilling to play. I can lose 5 games in a row and I could care less, whereas before I always raged after 2+ losses in a row. It's easier to play from behind too because you don't have to make 'big plays' to achieve anything. It's fucking easy, I feel dirty playing them.
Diamond V the dream, maybe this time