A Big Scribble Down the Middle
Over the years I've received some good advice about overcoming the creeping fear of failure before even starting. When I was attending University, I picked up Natalie Goldberg's Writing Down the Bones. A nice, short guide to creative writing, I found the exercises and tips extremely good advice (like, turn off that internal editor until after you've finished your first draft, not after you've been staring at your first paragraph for two hours trying to perfect it). It completely revolutionized the way I wrote and gave me the courage to speak with my own voice, not the voice I was afraid I wouldn't have.