By replacing the booze with sweets/candy, chocolate and chilli Doritos for me :D

It's hard, first weekend is the toughest but after that I find it gets easier as you'll feel the benefits. Better sleep and skin, more energy, more refreshed, less anxiety etc.

I'm not teetotal - far from it but I try 3-4 times a year to go off the booze for 3-4 weeks and mostly always manage. It's just habit really. Good luck.