Game launcher/Game Crashing constantly

I got kicked out of a game when we queued up in teambuilder because it never loaded after it counted down and so i was waiting and then game started and i still hadn't connected. I went through everything to try to get it to load up and tried for 30 minutes. After the game ended, I wasn't able to actually go and do anything because critical errors and unknown errors kept popping up. I closed the client and waited ten minutes and then everything seemed calm again. I tried once again to play a game, same thing happened. It never loaded me into the before game screen and then now I still can't get into the game. I am so frustrated and a bit pissed off. I know I'm going to get leaverbuster'd and that makes me even angrier because there is LITERALLY nothing I can do at this point. Is anyone having this problem and is there anything I can try other than repairing the client and trying to log in again?