Hi Sir My Name Is Dushyant.and Im 18 Years Old....sir

Hi sir my name is dushyant.and im 18 years old....sir I' was a normal child.but growing very fast compression to other child but i don't know how my height stop increasing .. And now I'm in 1st year and my height is same as when i was in 10th class...and i also had a problem of l5 and l6..
So please can you help me.. Please can you suggest me any poweder or supplements that will effect my height but without any side effects.my height is only 5.4 feet....
Please help me because my friends those who are shorter than me... Even they are grown up. And they are higher than me..
Please suggest me any poweder or supplements that really helps me in increasing my height..
Thank you