You still have a while most males don't stop growing until 20-22. But you might not, who knows, you're more than average height so it's not an awful problem average male height is 5'8"-5'10". It is very genetic based so it is kinda due to chance, although the eating healthily and exercising will help it won't make you grow, instead make your body ready for when it does grow. Good luck though. I'm 17 and growed a tad more from 6ft to closer to 6ft 1 but I still have a few more years where it could happen.