HY , i am 20 y and 5 months old , my father is 182 cm and my mother 162 cm, all of my father relatives are tall almost all over 182cm and all of my mother relatives are around 160 , i do bodybuilding for 2,5 years ,i am 176,5 cm and 170pounds (76 kg) , i did between the age of 19 and 20 a lot of stretching and i gained one cm in height , now for my workouts i take some supplements that include beta-sitosterol , beta-ecdysterone , ajuga turkestanica extract , 5-methyl-7Methoxyisoflavone ( in total 750 mg a day ), along with vitamins , 500mg(fenugreek , banaba leaf extract , cinnulin , Na-r-alpha lipoic acid) , i workout about 4 times a week not extremly intense and i try to do exercizes that don;t put stress on my lower back , i wanted to ask what is the age limit of growth and if could have some chances of growing at least 1 2 cm ? thank you