I feel like if I had the legs and determination to be the next bike superstar I would be out riding whatever my budget could afford ($100 bikes are all over craigslist), entering races, getting results, and hoping to be picked up by a team/sponsor.
Determination to sit and post a thread asking how to become a bike superstar would be low down the list of steps in order to become said superstar. Heck, if I was that serious I would sell my computer in order to pick up a bike.