When do you become professional in what you do? Do others give you this title or can you give it yourself? Can you be professional in everything or just in your job? What differs professional from unprofessional? Does being professional means you're absolutely confident in what you're doing? What does it mean 'professional artist'? Is that an artist that earns money from his art? Is that an artist who graduated Art Academy? If you're working as, lets say, secretary and after work you paint, does it make you professional secretary or professional artist? Both? None?
I'm caught in 'professional' trap and don't know how to answer my own questions. Maybe after few more years I'll get some more professional experience and answer this questions ;)