WHAT DO I DO?!!?!?!?! :'( :s :-/

two weeks ago, I weighed between 122 lbs to 125... This week, I weight 130-133...

This kinda made me panic and I felt the urge to do something I havent done in a long while. I dont feel good about it, but I feel worse about my weight. My entire family is obese. My mother, father, sister, my brother.... I have been the thinnest one of us for always. Obesity runs in my genes and I refuse to let myself be that way at all costs. I dont know what else to do. It worked last year, I dont want to do it now but I dont know what else to do. I have been on diets, I dont ever find time for exercise. what else am i to do?