The first three days are the hardest! On day four, you usually feel pretty good. It's ok to start again! You could even start over tomorrow. If you feel like you have the motivation, try getting through the end of day 4 this next time. You will see how much easier it gets. I began this week too, and had a surprise birthday party in honor of me that I wasnt expecting. I had to eat!! I am beginning again this Sunday. Good luck, and remember that MANY others are doing this right along with you!