loosing wieght for cheerleading?

okay well ive been cheering for 7 years.im a freshman. rec for 6 allstars for 1. i dont like rec as much as i like all stars so im going to do cheertyme.i am a flyer. have been for my whole life. i am not super self concious (even tho my boyfriend thinks i am) i wear a size 00 in jeans always extra small. im 5 foot 2. i think im kinda skinny but not fat. i wiegh about 105. that is heavy for a flyer! and i wanna tone my abbs a little bit (i had an accident with my back that involved 3 weeks laying in a hospital bed and i gained a little wieght) but i am fine now fully able i can tumble pretty well standing handspring and tuck roundoff tuck and roundoff handspring and roundoff handspring tuck (epic fail) but i already kno how i am going to get more tumbling for this squad. im afraid i will be a base or backspot for CT and i cant base or backspot…ive tried. i can only fly. and i only want to be a top girl. so i want to loose weight, but in a healthy way! i usually eat whatever i want which is a lot and i never gain wieght but i should eat healthy. everyday for lunch i have 2 yogurts chocolate milke and a sub with everything on it. and i also want to tone my legs and abb muscles, because my boyfriend is a football player and hes ripped, weve been together since we where babies! we love eachother very much, but i want to maintain my girlish figure hahha jp but for him and for me.. so if u have any good healthy wieghtloss plans and toning workouts and food ideas please let me kno(: thanks in advance