How to loose stomach fat?

I want to loose my stomach fat. im a 13 year old girl and im in pretty good shape but i have a bit of a gut. I wouldnt say i was fat or chunky, or plump or pudgy, im just a bit soggy around the middle. i need some exercises or diet help. I am strong and a good runner so im not out of shape, just needign to get rid of the fat.