Thanks for using healthcare magic.
I have gone through your available history.
At age on 21, it is difficult to increase the height. You should decide very carefully to go just as per advertisement.
You should consult endocrinologist
check -up. If everything come normal, you should accept your height as it is.
Why to loose confidence just as your height is low?? Instead, you should increase other credentials. You may contact counselor or psychiatrist
for the same.