Everyone take a deep breath and...
realize that one day you're going to look back and realize you spent a shit time worrying and getting angry over a game that honestly doesn't matter. Seriously unless you are like .1% of players that go pro or become streamers league is more likely going to be a money pit for you rather than a source of income.
So before you give yourself a stroke from all the pent up stress and anger you have from league just sit back take a deep breath, relax, and remember that league is just a game. Its meant to be fun not make you hate life.
Also I suggest listening to relaxing music while you play. Its hard to get angry while listening to relaxing music.