You should download MCD (mod conflict detector) it will sort through your CC and mods and it’ll tell you if some of your mods conflict each other or conflict the game. It also tells you if a certain CC or mod is broken, duplicated or needs to be unpacked.
This video will help you get it: https://www.youtube.com/watch?v=mePzsPBXWnA
Also if you are having trouble finding out what CC you need to delete. (May be broken or show up as question marks on the sims) you can get tray importer:
This video will give you instructions: https://www.youtube.com/watch?v=JAzJf6q5Sf4