Sorry, I interchange the two words. What I mean is if you want to get better (and actually professionally good at something) you need to get training (lessons,

Sorry, I interchange the two words. What I mean is if you want to get better (and actually professionally good at something) you need to get training (lessons, classes, courses, whatever you want to call it) from a professional teacher in that field - you won't get to pro level of good simply by doing, and you won't get to pro level taking lessons from someone else who is just good at it. They need to be a professional teacher in that field.