deleting my households that I had saved in the gallery

hi, I can't find a solution so I'll just put all the details here. I started a new game and spent a while making a household, but then I had trouble with a mod and while in the create a sim screen, saved the household to my library before exiting the game to deal with the mod. after I opened a new game again and went to the library to continue working on my household, I discovered it wasn't there and also wasn't there when I checked the news section, where it would usually show "user uploaded household!". I'd like to find a solution, as I spent a really long time on that household.

also I would like to mention that long before this happened, only one or two of my households showed up in my library, and only showed up in news or my profile.