Lost 6-8 hours of progress

I played about 6-8 hours yesterday. Upon loading the game today, it just got stuck at the loading screen where the music plays and it says loading. I restarted my pc. The game then loaded properly, only to find that all the progress I made yesterday was lost. How does something like this get resolved?

Every day that I’ve loaded into this game there has been a new MAJOR problem. One day, the sound doesn’t work. I have to google to find a fix for that. The next day the sound sutters every few seconds. I find a fix for that. Now, I am losing progress…this is unacceptable.