Sims 3 Mods Not Working

I recently got the Sims 3 disk last week, and my game has been running perfectly fine, but I am not able to use any mods. Each time I have tried to follow the instructions, of 1) making my own mods folder & 2) using the "Framework setup" one from Mod the sims it doesn't work. My pack files download perfect in game, and I am able to see them. I just am not able to see any of the package files that I input into my Mods folder. My "nointro" package file that comes with the mod the sims file doesn't even work as I am still able to see the intro. I have tried already tried most of the solutions that are available on the internet including: resetting my computer, making a new mods folder, deleting the cache sims files, deleting the mods folder and making a new one, redownloading the resources.cg file into the Mods folder. None of these things have worked. If anybody could please help that would be a blessing rn!! *PS I am on windows *