Game not loading, laggning or crashing - so tired of this!

I am so tired of The Sims not working correctly. Is the game not supposed to work with CC and mods? I have a few scenarios happening to me:

1. The gamle launches and I get to the loading screen, then it just freezes
2. The gamle launches and I get to the start page of the game. Here there's always adds you have to close to get to your game. When I close the first add window the game freezes. Sometimes the game starts after a 10 min freeze and sometimes it keeps on freezing.
3. Game launches and after the absout 10 min gamleplay the game crashes.
4. While in the game, switching from build mode to all the furniture takes forever to load.

I'm prob missing somthing but the game just doesn't work as it should. I keep my mods and CC updated with Curse Froge but this doesn't seem to help.

Please, if you have any idéas on what to do to get the game to work again let me know.