Don't Eat Garbage

If you know you will have a hard time resisting something then don't buy it! If it's something that you already bought and you are eating too much of it then do what I do: I say to the food "you have no power over me" and then I throw it in the trash. Then if I want more I just throw it in the trash since it's just garbage and I don't eat garbage. That way you probably won't spend your hard earned money on it again and the temptation will be gone.