One of a series of quotes you might find helpful in thinking ahead to the New Year: "During a performance, the only kind of 'feedback' you need is that sense of delight you will get when you are fully absorbed." - John Eliot in his book, Overachievement.
For a writer, "performance" means writing your first draft.Being critical--or inviting criticism--before that's done is a common source of writer's block and sinking spirits. Step one: write it. Steps 2 through 10: Get feedback and make it better. Step 11: Stop changing it, you're only making it different, not better. Step 12: Get it out into the world and start working on your next project.