Sims 4 game doesn't start

Hi, my name is Tylee and I'm a new member here! I have no idea where to write for this post but i'm hoping you could help me out. I have completely screwed up her game because of CC... Hahaha oops!!! Anyway, I have deleted the game off my computer and re-downloaded it, and my game does not even start up???? It has a black screen once I open it and then it goes back to my desktop screen and I have to force quit the sims 4. Are any of you able to give me some advice?

Thanks in advance!!!!