Where is My Discipline and Self Control?

I have obviously misplaced those two items.  Last night, while feeding pizza to my cousins, I managed to eat not one, not two, but three pieces of pizza!!  WOW!  That's all I can say.  I didn't eat 3 pieces of pizza when I wasn't a Weight Watcher! Man, it tasted so good, but I have to pray its not a set back.  I have been otherwise very good this week.  I know I am not supposed to punish myself for these "interesting choices", but my inner child needs a serious whoopin'!