you can't "try" to be tall. if it happens it happens. if late-bloomers are common in your family there is still a chance that you will have a final growth spurt but there is no way to make it happen. basically our height is determined at the moment of conception. since you are a product of your parent's dna you could achieve your dad's height or a blending of both your mother and father's height and i don't know how tall your mother is. unless you have some very very tall grandparents to influence your genetics it may not be very likely at your age to reach 6' 4" but time will reveal that answer. you are already taller than the average american man so congratulations. any more height should be considered a bonus.
am i still growing and going through puberty? . i am a 16 year old boy from nyc turning 17 on august 15th. i'm 5'11 and have been that way since 15. i'm also an early bloomer. my mom is 5'6. my dad told me he was 5'9 when he was 17 and shot up to 6'3 after high school. he wasn't even active. however he was a late bloomer ; had some facial. i have facial and chest hair. i don't have a mustache underlip hair voice cracks sometimes but rarely and my voice tone changes a lot from a low to a somewhat high pitch. trying to get to 6'3 or 6'4.