The word amateur is normally used to mean: somebody who does something ( e.g. a In some sporting events, all players are professional or all are amateur.
Amateur sports are sports in which participants engage largely or entirely without remuneration. In the majority of sports which feature professional players, the professionals will participate at a higher standard of play than amateur.
The only way to achieve anything great is to spend thousands of hours on your craft. Learn the difference between amateurs and professionals.