Matchmaking

I think I will officially quit League of Legends, matchmakings are so disgusting and unfair, I got several times in a row some kind of troll or feeder in my team and I dropped 2 ranks, this really pisses me off and I think riot should take a look at how they make matches because 80-90% of them are unfair. I am unable to carry the team if I play good because there is always someone who ruins everything in the game and by reporting them doesnt make me feel any better, I am seriously done....