continue running, but try to concentrate on taking longer strides. Doing squats will also help. Drink a lot of water, limit sweets, and eat healthily. http://youtube.com/watch?v=PKmiDtsCZgoHope this helps :) Good luck !
if u go to gym see if they have those like arobic classes, like the cardio kickbox or something similar they work ur whole legs out beautifully and its fun!