How to lose weight??????

I'm only ten And I weigh 110 pounds. I'm 4 feet 9. I feel like a hippo, sometimes my friends call me fat. I'm sick of it. Their not the best friends.... How do I stop my eating habbit I eat almost every 2hours. I'm really disipointed in my self. Both of my sisters are so happy their losing weight here I am eating a bag of chips. Sigh. I don't want to try the meals on tv. Please help!!!!!