Losing LP for game crashing

I have been having the same issue.  I have lost tons of LP.  I was D1 and have had it happen enough to derank me to D2.  It loads into a game after matchmaking, goes to loading screen and freezes there.  I have no idea what to do about it as I have tried every recommendation.  Tons of waste of time doing that mind you.  I’m not about with nothing to do so it’s quite inconvenient.