Is skipping rope a good way to lose fat? Please help!?

Is skipping rope a good way to lose fat under that small hole in the middle of your body? Because I'm 12 1/2 years old, 161 cm tall, and around 50-60 Kg. So could some one help me become skinny? Please help because I feel I'm to fat and kids in my grade and school make fun of me and I suck at sports because I can't run so please help! P.S:Tell me even more different ways to lose fat and get a 6-pax abs!