I want to get heeps better at the game than what I already am and grow my twitch base with it as well

I am a decent player at league. For mid I main Ekko and Ahri, I also do Jungel with Kindred and Ekko!
I've been playing pretty chill for around 6 months but am starting to go into comps and Try hard lol, I thought joining a team might help me improve and help out other people.