The cycle you're trapped in is very common. Your body has a basic survival response built in that will kick in if you starve yourself for a long enough time. Given a lengthy period of starvation, the body will begin to panic and seek out the most fatty foods it can recognize in order to build up fat-stores to ward off starvation. That's why after a few days of not eating sometimes anorexics break and binge on strange things like mayonaise or butter. Not to mention the more common things like fried foods and sweets. In order to prevent this from happening you need to make sure that you have a steady intake of healthy foods so that your body doesn't feel like it's starving and resort to this "fat-seeking" behavior. I would recommend finding healthy alternatives to the foods you like and eating them regularly. It might help to eat 4-6 smaller meals per day with 200-300 calories each. Maybe you can make small substitutions like using artificial sweeteners or fat-free condiments instead. Sometimes it helps to try to break down the craving that you're having and try to recognize what you're really hungry for. For example, if you feel like you're craving doughnuts, maybe what you're craving is something doughy and sweet. Maybe a roll with some sugar-free jelly on it might work just as well to satisfy you. You might also try to simply not surround yourself with unhealthy foods. Willpower falters, we all know that, so if you make it hard for yourself to binge if and when it does, you will be less able to. Take all of the "bad" foods out of your house and replace them with healthier things. If you feel the need to binge, you will end up binging on healthy things instead. I would also try taking Alli, the FDA-approved weight-loss aid that you can buy over the counter. It helps burn 50% more fat than diet and exercise alone. Sometimes I find that resolving to do just one healthy thing a week can help, such as having a salad for dinner one night, or not drinking any wine on a particular night of the week. Small steps lead to bigger steps as you gain confidence in being able to grasp some control. I hope this helps somewhat!