Im 15 & 1/2 years old male and i wear a size 12 in shoes and i am 5'8" will i grow to be 6ft?

Answer 1

There is no guarantee, but if foot size really does predict height, I would say you probably will. Art the other men in your family at least 6' tall? Genetics are the best predictor of any physical traits. Also, eat well. Avoid junk food, because it has the least nutrition in it. Stay active, that helps your body use the nutrition you give it.
Grow big.