Eliminating "bad" foods doesn't make you want "good" foods. It makes you crave the forbidden food. Enjoying things like holiday foods in moderation may be the best way to help you resist them.
Have your pumpkin pie - you only do this once a year. Enjoy 1 or 2 Christmas cookies a day. Indulge in an adult beverage if you want, enjoy it, but just one. No guilt. No compulsions. No counting calories. Enjoy food. Enjoy fellowship. Enjoy your holidays!