3 weeks, huh? Did you notice a 666 anywhere on your surgeon's body?
Well, you will probably not care too much for a couple days after surgery while you recover, but honestly, find something to occupy your mind. Start a fight club, follow strangers and mime air quotes to what they are saying, or simply pee in your surgeon's gas tank (You wanted me on fluids, here ya go buddy).
Ok, don't do any of that, but do find something you like outside of food and enjoy the heck out of it. And it's ok to cry too. I'm a guy and I never knew just how much stress that releases.