In whatever sport of field of endeavor you are interested, you should do whatever is necessary to compliment your God-given talent with proper mental preparation so as to do "the best you can." The criterion should be to fully exploit your potential rather than to win at any cost. What more could anyone ever ask of you than to be the best you possibly can?
I dribbled by the hour with my left hand when I was young. I didn't have full control, but I got so I could move the ball back and forth from one hand to the other without breaking the cadence of my dribble. I wasn't dribbling behind my back or setting up any trick stuff, but I was laying the groundwork for it.