Looking for a competitive team to join

I was a toxic player in the past got my main account banned and now I’m starting all over again with a fresh account. I have been training myself to be a more calm person and it’s working quite well. I have finished season 6 plat 1 and then dropped significantly to gold 5 and that drive me to be a toxic player. Anyway I’m a mid main. I have been playing since season 1. The account I’m playing right now is level 24.