Guy Fitness Advice Neeeded?

I'm 14 year old GUY, 5'8, and 160 pounds. I really want to lose weight fast. The weird thing is that the only fat part of my body is my stomach. My chest is basically flat, and then my stomach just sticks out, like i have a big beer belly. The problem is that where i live, it's snowy icy and always below 0 degrees celsius. How can i lose weight fast at home? I have a set of 12 pound dumbells that i can curl about 6-8 times. Dumbbells exercises will be appreciated greatly, as well as exercises that i can do at home using no equipment.I want to lose weight fast, please help. DON'T ANSWER THAT I SHOULD TAKE PILLS OR USE BODY CLEANERS PLEASE.