Are you drinking anything other than water?
I have found that drinking green tea has helped me out loads. Its got a funny tate to it so i dont want to eat afterwards, although i enjoy the drink while im drinking it lol.
If you drink lots and lots of water you'll feel too full to even want food.
Find something to distract yourself, read a book, have a bath, do your nails, pamper yourself, clean or tidy etc. Sometimes i have even been for a drive to distract myself.
x