Fasting.

Okay, as a simple little disclaimer, this is stupid, impulsive, dangerous and not recommended to anyone else.
With that out of the way, this is my plan:

Today is December 8th. There are 17 days until Christmas.
I learnt that it is hard for me to be around a recovering friend and starve, so the following now applies:
-No more eating when I'm at home alone - days are to be strictly 0 calories, or 200 liquid tops.
-Instant soup is no longer classed as a liquid, it is now food. So not allowed during the day.
-Allowed to eat when drunk/stoned with best friend.
-Eat if family makes me, or if out with family, but eat the smallest amount possible and 75% salad.
-No 'cheat days' 'rewards' or anything, until Christmas.
-This applies all holidays. No more day eating unless you are forced or collapse.