Do you have any photos of yourself before you lost the 3 stones ?
Perhaps if you look and them and take some of you now , You'll see that losing 3 stones is alot and you must be able to see alot of positive changes in the way you look .
Would keeping a before and after photo in your handbag and looking at it every time you want to eat help ?
Don't know , I'm just in my 2nd week and can only hope I will manage to lose 3 stones.