Bugged Client, Please Help

The client is bugged and has been since I started playing again about a month ago. Many times I was forced out of champ select because the countdown timer froze and it said that everybody left. Sometimes I am unable to accept a match because the ready check doesn't appear, or if it does it pops up for less than a second and goes away, telling me I didn't accept. This last bug has lost me a game in my series, and now even if I repair my client (which usually fixed the bug for a bit) it won't stop, so I can't play online. I have tried reporting the bugs when it they happen, and even submitting a support request but nothing so far. I also noticed a couple days ago that Riot said it was aware of the issue about the countdown timer freezing up, and that they were working to fix it. But nothing's happened for me. I feel frustrated, and I want some help on how to fix the issue. Any suggestions?