Please don't take what I'm about to say as anything but constructive.
If you are 16, 6'1" then your a tank, problem is you're acting like a Golf cart.
I'd forget about all that junk you're throwing and open it up, Baby. Use all that power G-d gave you and stretch out that body and lt it fly. Your pitching motion at this point will win you a couple of games of darts. I see no energy, no enthusiasm -you actually seem bored. Get crazy! Get Aggressive! stretch out those legs, spread those arms and let'er rip!
In NY, that junk pitching is great for stickball but why focus on the junk when you got the build of a cannon. Believe in your heater, trust your ability and send your fellow Cannucks running from the batters box.
Good luck and let it fly.