"Anything worth doing, is worth doing badly." (G.K. Chesterton)
The really worthwhile endeavors in life are not mastered immediately. Painting (see above), lovemaking, singing, beer-making, writing, conversation, witnessing, bible-reading, etc. are all acquired skills that require persistent effort (and many failures along the way) to do them well.
Chesterton is not arguing for mediocrity in anything, but rather wants us to have permission to fail repeatedly on our way to proficiency, excellence and joy in all things "worth doing."
P.S. There is actually a website called "The Museum of Bad Art" subtitled "Art too bad to be ignored." The site is true to its name, but, to misquote Janet Jackson, "What have you done for [art] lately?"