Hi! I think we're surgery twins... May 16th!
I started phase 2 of my liquid diet (5 meal replacement shakes, 200 cal specific veggies) today. For the first part of my liquid diet, I struggled a bit initially with cravings. The worst has been cooking for my family and not being able to join them. Now I've become pretty good at distracting myself. Any time I feel cravings or hunger that can't be fed at the moment, I do a mini workout. Some stretches, a few wall push ups, or some marching in place. It helps a bit.
As to the vitamins, definitely check with your surgical team. I am to stop mine 3 days prior to surgery, and then all but one of my prescriptions the day before surgery.
The nerves are real, but this is a good step. Good luck on your journey!