A stone in two weeks would be a huge amount @MammothyGoodness, slower is better for you. I bet pre this you’d have been amazed to even lose 8lbs in 2 weeks? Maybe focus on that?
Can you actually have a complete pig out? Will you not get full up before it gets crazy? I’ve still been having chocolate on occasion and finding a little bit is plenty, I feel like a normal person who just eats a bit thinks “oh that was nice” and stops. If you let yourself eat what you fancy you might find you don’t want that much anymore.
Otherwise I think it’s the usual advice for anyone dieting. Try and eat mindfully so you can distinguish proper hunger from boredom, distract yourself, maybe have a cup of peppermint tea or something instead. Drink a glass of water and see how you feel in half an hour. All the stuff I hate!