Your parents are responsible for your height, I'm afraid
Exercise and diet can make your bones stronger and improve your posture, but nothing of this nature will actually make you taller
than your
genetics already dictate.
There are hormonal treatments available for those who are truly vertically-challenged, but these are not without their risks; there are also numerous
"alternative" therapies which don't seem to have much evidence to back up their claims, and might actually be prime examples of scams.
I'm 5ft tall....and the only time my height really bothers me is when I'm stuck behind a "hat" or "hair-do" in the cinema.
And then I just mutter under my breath
Much as I hate platitudes and the like, it really is a case of "be happy with watcha got".