Marilyn, this is excellent. I constantly struggle myself with the fear of "not being good enough." Cato is credited with writing "Wise men learn more from fools than fools from the wise." I especially like your linked article.
In a similar vein, as many of my wiser guides in life and career have said, "Don't let the perfect be the enemy of the good," and "Don't mistake activity for progress."
Thank you.