That's the way sugar acts: it is a drug and the more you consume, the more your body wants. Unfortunately, there is no other way around it other than self-control. You also have to do what works best for you. I've heard some people say to cut out sugar entirely from their diet and after a couple weeks they have no more cravings. I wouldn't cut it out entirely because that's depriving your body making you more likely to binge on it later on. A treat or two a day will usually suffice.

Here's my suggestion: keep those unhealthy foods out of the house for the most part. Make a list of 10 of your favorite foods and make sure eat have at least one of them every day. Eat it in public or in a place where it is easier to maintain control and you won't go on a cupboard-emptying rampage. Also try to replace refined sugars with complex sugars (honey or molasses instead of white sugar.) Eat fruits and veggies that have good sugars in them and try to see them as rewards or desserts like you see the cupcake or ice cream.