How do i get thin? Ive got man boobs and puffy nipples, how do i get rid of them?

dont eat junk food dude....no fast food.....eat healty

First diet, don't eat too much during night time your metabolism is slow when your sleeping; try to avoid too much carbohydrates. Second cardio try to jog at least 30 mins every morning. Make it a habit you'll get rid of your fats just don't expect an overnight result. Third try to be active look for a sport that makes a lot of sweat.

start running alot and lifting do push ups for your chest and your arms to get toned, but you need to drop weight before you actually start building muscle you'll just look swollen. If you drink beer that's one biggie cant drink beer way to many carbs, drink liquor instead i know your 16 and all but hey i was 16 once.

do cardio exercises (treadmill, jogging, swimming etc) and be persistent.