Everything about this will ruin your life and it is poorly made.
If you're starting a game, prepare to commit to play for at least the next 35 minutes. Not to mention the queue time, champion select, and the loading screen before getting into a game.
Matchmaking is dumb and there is almost always a big skill gap between players. Smurfs tend to be queued against noobs.
So many champions are just not balanced, but if everything's unbalanced, then everything is balanced.