New with 1,000 questions

I was banded 3/19. Between the pre-op diet and post-op, I've lost 31 lbs. as of today (130 more to go). I feel completely confused on planning meals/menus, keeping portions small, and getting the 80-90 g of protein my dietician wants me to have. If you are not supposed to drink 1/2 hour before your meal, during your meal, and 30-60 minutes after you meal, how do you get 64 oz of liquid down in a day? I'd like to hear from anyone who is 3-4 weeks post-op, and how they are doing.

Semper fi