Get your shit together League!

I keep crashing, all the time. I have gotten 30 minute bans because I couldn't accept. The crashes range A: Black screen but audio is still there in queue or champ select, B: The whole thing goes white for a sec then just disappears, and then when you want to try to open the client again it says something like, "League is already open. Would you like to force shut it down?". or C: my worst experience with this game ever. I would try to open league, the logo would pop up, but then the launcher would not pop up. At all. I found absolutely no fixes, except for completely resetting completely. D: The borders were white in game, and I couldn't move my mouse around the screen, (found a fix, but its still annoying). PLs fix ur game.