How can i reduce my height as it is 5.8\ at the age of 13?
You cannot and should not reduce your height, because in a few years time you’ll be very glad for having it. Most girls prefer tall guys, believe me, and if you happen to be a girl (sorry, your nickname is not exactly clear!), well, 5.8″ is not that tall and maybe you’ll stop growing very soon. I myself did not grow since the age of 14. Maybe you should go into basketball where you might profit from your height? I know it’s hard to be different, especially at your age, and I sympathy with you. Be strong and let not unsettle yourself too badly by tauntings and mockery which you have very likely to endure by your peers! There are always people who rejoice in ridiculing others because of things like their weight, their big nose or their clothes. In many cases they do it to cover their own insecurities. Be self-confident and don’t let them get to you, they are not worth it!