@riot when will this end? I'm quitting league

Second game in a row same result, and I had enough of win streak lose streak I have never been this stuck in an elo for 4 years. I have had enough of this matchmaking, balance, overloaded champions and stomp games. I Atleast if my team mates were good the game would be abit enjoyable but they are not in 70% of games. Makes me sad to leave my favorite game but I can't take it anymore I'm having anger issues playing 10 to 14 hours a day for nothing so goodbye untill matchmaking is fixed

Edit: I didn't decide to go on the boards and quit after having bad team mates from one game this has been going from the start of the season my team or the enemy team it's just simply not enjoyable.

Edit2: according to some "oblivious " league players matchmaking is fine nothing wrong with it and every one else are just lying/delusional .