Isn't League of Legends a game?
I get it. There is a competitive nature to ranked mode. I agree that it should be competitive, but honestly, you are playing a game, not taking the BAR exam. Just relax. Take a deep breath. The world will not alter if you lose a game. So please, for the love of everything sane, just play for fun. I don't mean screw around and try to lose, because that is ruining someone else's experience. But enjoy yourself!