Man with height and hence reach you have the advantage in punch power as well, T= F x R. It's physics man your power (torque) is going to be that much greater. If you learn to punch with your whole body you will be able to throw bombs. Even if you move up one weight division you will still be huge, i'm 5"11 and 72kg, you'd still have a massive advantage over guys like me and Donny. Don't let this discourage you, boxing is like 90% mental and when you realise this you know your mind is the limitation not the body. You should work on yourself mentally more than your body, not only will this help you in boxing but in life.