My Sim is glitching all over the place

Here's one of the pics of what I'm talking about. As you can see, the torso and arms are gone, the feet are gone, and my patience is gone.

This time, the legs are gone, the left hand is gone, and my mouse' life is gone because i threw it at the wall.

Now you MIGHT say "iTs tHE CC" or something, but here's something for you:

Another sim in THE SAME outfit.

So in conclusion, I need help, I need to fix it, and I may need a new mouse.