@iheartanimaljam8 Is it possible that your game is using a different Mods folder than the one you've been adding the .package files to?
Sometimes, especially after an update, the game will decide to start using a different user folder located on a cloud drive (i.e. OneDrive). If your game is using a Mods folder on the cloud it will not see any ,package files you have been adding in your Documents/Sims 4 Mods folder. Here's a link on how to find out which user folder your game is currently using:
https://sims4.crinrict.com/eng/2018/07/how-to-find-your-user-folder/