Laura, don't give up. If you must try the goodies pick one that is extra special and savor it. I know if I let myself I would eat cookies that aren't even my favorite just because they are there. I haven't let myself have any cookies yet but I may before the holidays are over.
I like to remember- Just because you dent your car you don't drive it over a cliff. Just because you have a time of eating too many goodies it doesn't have to continue.