Want to incresase height , knee bone

Hello doctor my name is shreejan sinha I am 18 year old my height is 165cm and my weight is 76kg.my father's height would be around 5'8-5'9 ( my head reaches above his ear)my mother would be around 5'4 and my sister is 5'5.i want to increase my height . I want to b 170cm+ but my knee bones have fused.i have got my elbow x-ray also done.if I can't get tall I atleast want to give the impression that I am 170cm+.can my height increase.i heard height can increase till the age 21-22 in boys,will I be taller.. I am around 12 kg overweight if I reduce this weight will my height increase because more weight means more pressure on spine... What should I eat to increase height..what exercise should I do..how many times...should I take any supplements...please tell in detail One more issue is that I have no facial hair..boys around 16 year are keeping beard..but I have no hair what can I do please doctor I need your help