I know for me what has helped me is a small piece of paper which I copied and put on my fridge and inside my shelves and also on my work computer. On it says:

When I eat carbs, I get in return for that moment of pleasure and joy:
asthma-so I cough all the next tow or three days, aches-so I walk stiffly and my wrists hurt,
sleepiness-Look Guys, I'm a zombie,
Hives-Oh aren't they so attractive,
cravings-so now tempation is always on the mind,
and guilt-For knowing better than to eat the carb in the first place.

Also you need to focus on what you can eat. Learn to have a blind eye. When I go to a part, I look for the cheese plate and the veggie plate. There are times inwhich these are my actual meal.