Achieving excellence in any kind of creative field requires that you couple your passion with perserverence. To create something wonderful, you have to put in the long hours to improve your craft and actually create.
Having a dreams and goal helps. Yet there is no substitution to dedication, discipline and drive.
Let your dedication become the crucible by which creative works are forged. Put in long hours, deal with disappointment and stretch yourself close to the breaking point, the things that you create will be worth the effort.