Hi Leigh,
My advice (from experience) is DON'T DO IT. As an adult, you can do what you want and if you think you can get up on January 1 and be right on plan, then you are stronger than me
In 2007, on my birthday, I had been on Medifast for 3 months and had lost 50 pounds. I was craving sushi and my husband and I decided to go out for some. I posted my intent on this board and asked for feedback. I got 6 resounding NO's!! I should have listened.
We went for sushi and I vowed to start the next day. And the next. And the next. 60 pounds and almost 2 years later - HERE I AM AGAIN. It took me so long to restart and so much depression and shame to get me back on board.
So that is my story. Birthdays, holidays, come and go...there is always an occassion to eat. But we only get ONE life.
I hope this helped. I just want my past failure to be your success.