First of all, thanks to Galatea and the Mares for their best wishes. Second, my actual bloody game.
In the meantime, I'm going to save my "Packages" folder so I don't have to download the file that makes it work again (fuck if I can remember what it's called). I'll put it somewhere else in my computer, and start digging into my bookmarks and redownloading custom content, being careful to download only what I will actually fucking use, and making sure to weed everything else out. I'll keep a separate folder within my "Packages" folder for .sims3packs, and take that folder out to install shit later.
Off I go. Wish me luck.