also im 5'6 or 5'7 and my jean size is 31 or 32

i wiegh about 165 im 14 my friends say im pretty buff im a bit bigger than my friends i have fat all around my body an i have quite a bit of belly fat im not that fat but im i think my self as a bit fat. what can i do to gt ride of my fat and get thinner please help thank you. also i am kinda athletic. i can run for about 10 mins and i can lift quite a bit of wieght thank you very much for your help.