The Sims 3 Mods aren't working for me...

@draabiczek  There are a couple possibilities.  One is that you forgot to delete scriptCache.package after adding more mods; this file needs to be deleted any time you add or remove any mod.  Another possibility is that one of the mods you're adding is broken, not for Sims 3, or not compatible with a fully patched game.  If you want to test, try downloading a mod or two from NRaas.  They all work fine with the current versions of Sims 3.

By the way, just to check, please list the full version number of your game, which you can see in the lower left corner of the launcher.  If you have a less than fully patched install, that could also explain the problem.