How can I be a size zero or one?

Ok so I'm 13 I'm 5"5 I weigh 123 and I plan on losing 10-15 pounds within 2 months I exercise daily (HOURS of cardio) and I don't eat diner I don't eat soda or sweets maybe once a week :) I eats tons of veggies and yea I'm a size 3/4 currently I could fit into a size 1 but it's cuz of my bum lol that's the only part it can't pass other than that I have slim TONED muscular legs oh and I'm really muscular and I want to be a model my measurements are 34-25-34 I want them to be 34-22 1/2-34 lol no mean comments plz and don't say ur young or it's stupid or media this and that thnx and yea