Pre-Op!!!!!

So, day 2 of my pre-op diet, not fun at all, I miss everything I never liked to have like pancakes! but I do miss my coffee and cream the most! I never liked the taste of protein shakes but have been good and have not cheated at all. I can have some veggies with only lemon juice, no salt, no olive oil :(
I am invited to a friend's house for the first time! I am not sure what to eat as I have not told anyone except my close family about surgery and am not planning to!

Any tips from previous banded friends are very welcome.
btw, I am on slimtime shakes, those and some veggies are all I can have!