my age is 17 and height is 6.1 but weigh is 96. what to do now????
You didn't specify, what do you exactly want to ask in the question. If you are asking tips to become fit and make your body index even, then obviously you need to start exercising or doing yoga. Indulge in more and more physical activities and eat healthy. Go for walks, jog, skip rope, or join a Jim. Burn your calories and you will start experiencing a change. But, you will have to work very hard for that. If you can do that, you can achieve anything. Hope this helps.
All the best!