I know how you feel
Had a bad couple days myself, but just get back up on that horse ( or whatever analogy works!) and work your plan! I'm glad my kids don't do the halloween thing anymore, but one thing I did learn is that most chocolate bars freeze well. Stick whatever they "donate" to you in the freezer and it'll be harder to access. I have even at times forgot there was chocolate in the house, since it got pushed back behind all the other freezer stuff
, but, if I really, really had a craving, I could just dig it out and have a frozen chocolate bar.
My mom just reminded me that we need a 'mess up day' every now and then, because it reminds us how good it feels when we stick to our plan