The thing required to be a professional at something--the only thing required--is to convince somebody to pay you for your product or work. Whether you're actually any good at it is a different matter entirely, and somewhat only tangentially related getting paid.
The thing required to be a professional at something--the only thing required--is to convince somebody to pay you for your product or work. Whether you're actually any good at it is a different matter entirely, and somewhat only tangentially related getting paid.