I remember having a lot of trouble getting used to the protein shakes. I had to thin mine down quite a bit, adding extra water helped me meet my water goals. As far as getting your water in, always have your water handy and take small sips all day. Starting from the moment you wake up (keep it bed side). The small sips will stop the ful feeling. Try adding some lemon or Mio or crystal light to your water, so you actually enjoy drinking it. It's all about retraining yourself to form new and healthy habits. And it takes up to two months for an action to become a habit! Be patient. Over time, when you're fully healed, you'll be able to drink all 64oz and more!