Save Files Empty/Broken

so i have a similar problem but i did nothing to my files. i didnt delete them change them they arent really old etc. i loaded up the game and it asked if i was new but i have been playing the same game for years now and its never done this before. it required me to make a household first. none of my households were in the world after that. i always checked my files and ive never had problems with them. before i launched it i had to update it so that may have been the issue somehow. another weird thing is its somewhat saved. if i opened up the gallery and looked at my profile i could see any sims i had shared/uploaded. i tried to place one in a household and all the mods were removed. i checked the game to see if it was a glitch by loading up the active mods list and it was blank. the game didnt load in any of my mods. but i checked before playing and it said that mods were enabled and i didnt have to re enable them at all. ive played this game for 3 thousand some hours and if all of that is now gone i dont even know what to do anymore, i may never play the game again, or id just start from scratch and be really upset.