How can I gain muscle at 15 years old ?

I am only 14 and am stronger than most 16 year olds. It is possible to build up muscles at a young age

MSteen wrote:

At 15 you're just too young to worry about developing muscle. You're still growing, and you're not really going to "bulk up," if that is even possible for you, until you reach your late teens or early twenties.

For now, the best choice is a balanced diet and a lot of good all around exercise. Running and biking, pushups and pullups, some weightlifting--NEVER TO MAX--will keep you strong and healthy and prepare you for the muscle that will come in the next few years.

And don't listen to that BS about working to muscle failure. That's the point where your technique gets sloppy from fatigue, and you invite injury. Remember, a torn muscle is going to keep you away from serious working out for six months to a year. It's not worth it.

So how did it work out?

basic place to start: make any kind of exercise and keep making it lol

well i stoped working out and gained a little weight . now im going on a diet to lose a little before working out again. 

Start running then, you'll loose weight faster.Runnings so easy, no need for any gym menbership.