Im 166cm and i wud lik2 be arnd 180cm,plzz!!!! help me regarding this,im damn serious?

i m almost 15 i m only 166cm, well i think that's short since guy's in my cl are really taller than me, i do stretching , exercise on a daily basis ,and for the past 5 mnths i hav not grown much,please tell me sum natural way 2 increase my height,i m serious,please help!!!,i want 2 grow tall,please dont take tis ques as a joke!!!please help!!