Your food packs.
Many of us have done it, including Christmas, birthdays, holidays, easter, you just need to get your mind set right.
I discovered over Christmas that I don't enjoy it because of the food and drink, I had a fab time just being with my family and having fun, the same with being on holiday. I managed 10 days away on foodpacks, still had an excellent time and lost weight too.
You can do it.