That is very true. It's a mind game more than anything. I'm on day 7, and all the worst is behind me. Just use lots of ice, drink lots of fluids, and it should go fine. This is a wonderful web site, and I'm so glad to have found it. All your questions are answered within the day you asked it. All you really should do while recovering is stay in bed, apply lots of ice on face for swelling, drink lots of high calorie drinks, keep mouth clean with salt water, and get good rest. Try not to do a lot.
I was also very calm before the surgery. Maybe I didn't think about it a lot. I even held my hand out from time to time, right before the surgery, to check if I was shaking hahaha, and I wasn't. Kept totally cool. But that's probably because I'm good at distracting myself, and wandering off.
Just remember it could be a lot worse. You're actually very lucky to be able to get this surgery; just think of the future ahead of you and great it will be with this problem out of the way. Some people are stuck with this problem with no way of paying for it.
They're working on your jaw, not your brain or your spine. This is very safe. You will be fine!
hah did that help?