You have to be talentedly insecure in order to be a good actress. And then it's the director's job to make you more miserable and get a good take.
From the mingled strength of shade and light A new creation rises to my sight, Such heav'nly figures from his pencil flow, So warm with light his blended colors glow. . . . . The glowing portraits, fresh from life, that bring Home to our hearts the truth from which they spring.