I am 15 years old, and i am 5'6. I started to grow earlier this year after i turned 15. Now i am taller than my dad, mom, and big brother who is 5'4 and 17 years old. My brother and my dad are the same size, but they have bigger bodies. I am skinny and still have a small chest. Will i still get taller in the future? I will be 16 by next month. Will i stop growing? Is this the size i will be for the rest of my life?
It is possible that you could still grow taller and bigger in your chest. Height is determined mostly by genetics so I doubt you will get much taller. As for chest size you can increase the size by diet and weight training.