I am a typical teen, i generally eat healthy, but what can I do to change my body from frumpy to thin?

Answer 1

find calorie/fitness calculator on the net, enter your stats, take 300-400 calories off that number and that's how much you need to lose weight.
5-8servings of fruit and veggies a day
8 glasses of water a day
5-6 small meals instead of 3 big ones (breakfast is the most important - make sure to get complex carbs like whole wheat bread, oatmeal, fruit etc)
4-6 times a week cardio for 30-50min, light weight training, many reps
no junk food, no sodas, no alcohol, no white flour (cakes, cookies, white bread, pasta etc.), nothing high in sugar (ice cream)

Answer 2

Cardio! Eating healthy just isn't enough. Cardio exercise will help slim down the extra body fat as well as tone up the muscles so your body will look great. Cardio with a well-balanced diet and plenty of water is all you need.

Answer 3

Start with improving your posture.