Am I able to grow much taller?

I am currently 17 and a half and stand around 5 7-5 8. My father is my exact height, perhaps slightly shorter, and my mother is just over 5 0. Genetically speaking it doesn t look like I will grow much taller, however I understand that males can grow to 21. I would love to be around 6 0, especially given the fact I wish to pursue corporate law and I feel that ultimately first impressions with height matter. I also eat relatively healthy for a person of my age, partake in regular exercise and attend the gym six days a week, understanding the implications of weightlifting on height growth and refraining from exercises which allegedly hinder it. Basically can I reach six foot. Thanks.