So many client bugs now that this game is literally unplayable

So now my client is crashing for no reason. On top of that:

-lag spikes up the ass -random exe error msgs that result in closing of client -have to log in twice -screen turns black for no reason during champ select -loading screen for match gets stuck at 100% and match never starts

I've gotten 2 leaver bans tonight because of these problems along with being reported by teamates. Wheres the LOSS PREVENTED? Wheres the compensation? I've only successfully been able to even play 2 matches tonight and im sitting here looking at a loading screen thats stuck at 100% for the past 15 minutes now.

Get your shit together riot. This game is being run like some kids first VB project that he made in his basement