When I was 14 my family moved to Indiana where basketball is everything. I spent an entire fall, winter, spring, and summer shooting baskets at an old goal someone had put up over an old rickety garage at the farmhouse we lived in. When the next basketball season came around I tried out for the team. Everyone was amazed at my shooting prowess. I could hit shots effortlessly from any place on the court. Unfotunately, because the driveway in front of the old garage was dirt and often full of ruts, I never spent any time dribbling the ball. I was taken on the team, but almost always shot as soon as the ball was passed to me or passed off. The thing I learned was that practice or the lack thereof can make all the difference.
Besides, your stamping isnt all that bad.
Sorry for being so wordy.