Your question is highly personal and may not apply to you. Estrogen causes the bones to cap off early and once they do, you have reached your adult height. If you really want to know what's possible, the doctors can do an X-ray on your leg and tell you if the bone is capped off and if not, how much remaining height is possible. If you are in your teens and have low estrogen, additional height might be possibly however when you are in your 20's with normal estrogen, I suspect additional growth isn't possible.