This is a good chance to learn from what happened. I don't know if there is anyone out there that has been on a diet for any length of time, that this hasn't happened to. This happened to me over Christmas Break... I was at my Mom's house in Chicago, and had been doing so well, passing an incredible plate of various home-made cookies 3 days straight... one night, I was up late, and I decided I could have one... then one turned into 10, then 10 turned into 10 + 5 more from the stock-pile in the fridge, then I added some chocolate fudge (right out of the jar)... haha... thinking about it.. wow... I went whole hog, it's hard not to laugh about it in retrospect... I say that now, because I have lost 50 pounds in the last 5 months, INCLUDING that night of gorging myself.. the result, it didn't do as much damage as I thought... if you weight yourself everyday, skip the next few days and add another 20 minutes of exercise into your routine... and like everyone said, move on. keep on keeping on.
-Mellon