Has anyone had jaw surgery?

I’m having double jaw surgery in 3 days and I’m Terrified, the aftermath of getting my wisdom teeth out was much more painful for me than the average person so I can’t imagine how much worse this is going to be... plus my mom wants to take us all on a 9+ hour roundtrip the next day, right after I’m discharged from the hospital... has anyone had the surgery before who can tell me what it was like or reassure me?