your stats are similar to mine, im 16 6' at about 175 now. i loooked about the same as you before i started bulking, eat like a horse and you will grow, i put on some serious pounsd everywhere from just training hardcore and eating everything. use your age to ur advantage. ur not the only one our age here, there are a few others.
if a mod is reading this........ any chance at getting an under 18 forum for us youngins?