How can i loose stomach fat?

Im 13 years old, 14 on monday. I dance pretty much everyday. I know i shouldn't be worrying about this but i need too loose this body fat on my stomach. I hate it. Its not that much but i want it to flatten. Every time i sit it bunches up and makes me want to cry. I just need exercises that will definitely work. I have been doing minute planks twice a day for about a week. Please help! I really want to loose this!