low elo's biggest problem
you all play way too many champions in ranked. I get players randomly playing vayne with bad win rates and they feed most of the time, People with 60% win rates on other champions playing first time soraka and even feeding on that. Meanwhile the kid will have something like a 60% win rate on caitlyn but never plays it. Nobody cares if you are playing a hard champion when you completely lose your team a game with it even with smurfs on your team. Just play easier champions that you can play so we dont have a pretty much lower elo player that picks a champion that is useless unless you are good in our game.
Like I have a vayne now in my game that is the same 2-6 doing no damage being carried. Our malz is pretty bad too he cant even press R so hes 1-3-10 l0l. You are more of a support/useless when you play hard champs that dont really do anything unless you can execute. if you have alot of games played on a champ and have an even or negative win rate just stop playing it and play and easier champion you will start winning alot more games and get better at the game!
Champs to stay away from that always either A.do the least damage on the team even while maining the champion in some cases. B. Hard to carry/win with if playing solo. C. if you are trying to improve. SO abc stay away from these

I double/tripled the ones I see the most that are on the 100% no list.
The I want to get better and improve list!

Hope this helps you Diamond and below summoners. This is what I followed to get diamond last season and it was incredibly easy. I know its alot harder now with dynamic que but this will still help you improve your play for solo que when or if it gets released. glhf.