You're welcome!!
It's suggested to keep a backup copy of the saves, just in case they are able to actually fix the game to where you can then load the "bad" save.
I either move the whole Sims 4 folder out to the desktop or rename it something like Sims4Old. That's the easiest way for me to save a back up of my Sims 4 files.
Hopefully if you've tried a new save it's going well?