I too started my pre-op diet this week. It has been tough and some HOURS are better than others. I have slipped twice, but have still managed to drop almost 8 pounds since Monday! Keep your head up and try to stick with it as best as you can. I am sure most of us have been eating like this for several years, if not several decades. Its not an easy thing to get over, however you can do what ever you put your mind to . Stay strong!!