What should I do if I think the animal I hit with my car at 2am was a cat, but could not find it?

SINCE YOU DIDNT FIND THE CAT SHE COULD OF RAN OFF. I WOULD GET SOME SLEEP AND LOOK FOR HER IN THE DAY LIGHT. IF YOU CANT SLEEP TAKE A PM PILL OR SOMETHING. OR DRINK SOME TEA, BUT TRY TO RELAX I THINK YOU DID ENOUGH AND ALL YOU CAN DO FOR NOW.... PLEASE DONT DRIVE WHILE UPSET.