Photos library repair
About a week ago, when I tried to open Photos, all I got was a blank screen with the rotating pinwheel. I let it go for a couple of days, with no change or error messages. I had to force quit to restart my iMac. Dis some research and launched Photos in repair mode. I read that it could take a while, so patience was needed. it took a couple of hours to get to 5%, but not it has been on "Repairing Library... (5% complete)" for 4 days. I do have Time Machine backups, but I don't know how far back I would need to go to get going again. I don't want to lose the last weeks of photos added, but I would rather that than lose 20+ years of scanned and imported photos. Anybody have any words of wisdom here?
iMac 27", macOS 10.14