Am I cut out for football?

I'm 16, 5'10 and 205-210lbs. I play O-Line (Center/Right Guard). My coaches have been telling me to get bigger and strong. I've been lifting weights since the regular season ended, I've gained muscle but what doesn't seem to be changing is my height. I want to play football at the next level, but i still feel short on the field. I still have my junior and senior year left. I'm seeing the other players around me starting to grow taller. I've done some research and found out the average height for a center in the NFL which is between 6'1 and 6'4 but they're 250lbs.