"Creativity is allowing yourself to make mistakes. Art is knowing which ones to keep."
– Scott Adams, creator of the comic strip Dilbert
Allowing yourself to make mistakes will help you keep the creativity flowing. There are times, though, when everyone hears the voice of the inner critic more loudly than at other times.
Here are some great articles with tips for handling your inner critic and getting past a creative block:
Five Ways to Stay Creatively Blocked, by Chris Dunmire
Inner Critic Got You Down?, by Chris Zydel (how to create a critic-free zone)
The Artist's Soul Can Be Kidnapped by the Inner Critic, by Valery Satterwhite
From painter Robert Genn, "Crisis of confidence," his thoughtful article, followed by comments, reflections, and discussions of the issue by other painters
And here are tips from many artists about how they can overcome creative blocks.