I can't see my CC in CAS and in live mode I cant see my sims or their thoughts.

 I use 1000's of cc & mods, but keep them updated regularly, and set them up in different folders to sort when an issue arises such as Sims Game Update or adding a pack. (note, my game loads in a couple of minutes)

• Apart from culling your folders one by one, or the  50/50 method, to narrow down the broken cc or mod, that is all you can do, (restarting and checking your game each time) you'll simply need to find the broken mod/cc it and remove it.

• Mods & cc are well known to cause various in-game issues please check for updates to them / where you found them; do this also > after any sims update or adding a game pack,

• SimsVIP also do a regular post for people who use cc; on which ones are broken or now updated; All on the one page too, and the best list.

• Also the EA Forums do a regular post for the broken cc.

• I use Sims 4 Studio for batch fixes it solves a lot of problems in bulk (but not all.) It's also available for Mac.

• Dimitry's Mod Conflict Detector at mod the sims is good too, (but only for Windows not Mac - so if you have access to one, you could copy your Mods folder and check them that way) as you may have accidentally downloaded some Sims 3 / 2 items is not always going to be an obvious thing.. (as to 'why' if you haven't yet even tried to 'use' a cc in game)It will  detect duplicates and 'wrong game' cc.. and sorts it via highlighting in bright colors.