I Have No Willpower!!?

well you have got one step further to stopping as you have just addmitted that you cannot continue, it is hard but just keep trying even if you can cut down each day just a little and bring in your own snacks to eat if you get hungry and decide that you are going to reward yourself if you can go a whole day with eating anything out of the shop, buy yourself a new piece of clothing or cd or somehting like that.