LOWER BELLY FAT!!!!!!!!!!!!!!!?

ok so im 13, 5'5, and 115 lbs. its not too bad and im happy(i lost 17 lbs!!!) but when i tried on my bikini the bottoms made me look weird. so i relized a have lower belly fat. like rite aat the belly on. so wat do i do to lose it!?!?!?!? besides running and dancing and leg lifts and stuff like that???? wat do i do!?!?!