"The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark."
Every athlete must struggle to make a goal that is both reasonable (short term), and exuberant (Long Term).
You may want to discuss your dreams with your Parents, your Coach, your Peers, your Friends, but only you can set your goals. There will be detractors, there will be times when reaching the goal seems impossible, but without goals, we are simply passing time. WITH goals, amazing things can be accomplished.