What is the fastest dieting way to lose weight?

i am now currently on atkins (and i now lost 3 pounds on the last 3 days). but i really want to lose weight a little bit faster... i am a dancer, 3 times a week, 2 hours a day. atkins is a good diet, but i really want to see a difference in my body a little faster... i don't want to use steroids, or diet pills since im only 13 years old :)