Becky, you've not messed up, you've just learnt a valuable lesson - you just don't take compliments well!!!
I don't know about you, but I've been overweight all of my adult life and now the compliments are coming, I don't know how to handle them!! I get scared of gaining and start wigging out about putting the weight back on. You get scared of people seeing the real you and try to hide behind food.
I think that food will always be our comfort and protector, but hopefully we will learn that when we need the familiar security, we'll reach for syn free stuff.
Focus on how well you have done, FOR YOU and not for their compliments. YOUR acheivements are fabulous and you know that one meal will not undermine what you have done so far, unless you don't get back on track tomorrow.
Good luck for the morning and the rest of the week.