Darlin' we all have lousy, crummy days. They're just part of life. We are human, not preprogrammed robots and sometimes we veer off course a bit. The good thing about this is that you feel lousy about it, that's progress, isn't it? A day is just one skinny little 24 hour period. Tomorrow is a new day with a new opportunity to make better choices and get closer to your goals. Hopefully your day will go smoother from the start and that will help you to get right back on course. Hang in there.
On a side not, buffets should be outlawed.