I have not seen your art, but I doubt you have spent your life around  great artists as you say I have not. I won't get into quoting other artists from our past, as what was written in their behalf was not in their own handwritings. You are the same school of thought that believes a diploma is equivalent  to talent and any artist worth their salt knows long before they reach the so called  professional arena you speak of that what they pull from within does not come easily. You seem to speak of masterpieces as if they plop from ones butt, not so... As you can fill one large bookshelf with all the memorable works created by the most talented (not experienced) artists of our times.