Sum38, there are three girls! I like it but it has it's challenges.
Sometimes what keeps me from bingeing is the feeling that when I've made the choice not to, I feel really happy with myself. I also try to focus on how I'll feel after the binge, like bloated and sick, and tired from not being able to sleep. I heard someone once say that with a binge you have to stop eating eventually, so why not stop before you actually binge?
One more thing that helps me stop a binge is when I'm feeling like I want to just eat, I do, but I eat something volume heavy and low calorie, like cucumber or raw zucchini. It doesn't have the sugar of fruit that makes me want to eat more, and it's not the kind of thing you want to keep eating when you're not hungry. Soon, eating it becomes not enjoyable anymore and I want to do something else. That's what's been helping me lately, anyway!