Super fast way to lose weight?

I'm nearly 15, I'm 5'5" and I weight 135 pounds. I have a sort of "obsession" with food, but I'm trying to lose AT LEAST 10 pounds before camp at the end of July. I'm not worried about my health right now, I'll stop whatever suggestions you give me after camp and go on a healthy diet. I just need to lose the fat in my stomach and thighs NOW. Every other girl at camp last year was skinny or fit but me. My stomach and thighs really embarrass me, and I've been doing cardio and toning exercises plus diets for years, and I always relapse when I don't get results. I REALLY need to lose weight, What can I do without all out starving myself? My mom watches my eating habits, and she'll think I'm trying to get attention.