A professional is one who does his best work when he feels the least like working.
Frank Lloyd Wright
Amateurs train until they get it right. Professionals train until they never get it wrong.
It’s as simply as that. Doing a thing one time does not make you good at it, it merely is proof that you in fact are able to do it.
You want more, you want to be damn good at it!
An expert is a man who has made all the mistakes which can be made, in a narrow field.
Having wide spread interests is awesome. Also awesome is being genuinely good at one thing. Therefore find your passion and work till you pass out!
Becoming a professional means making mistake after mistake and not quitting. Then after some time you know more about your job than any other person because they quit at some point and you pushed through!