How do you deal with fear of failure?
Not very well, unfortunately. Lately, I've been dealing with fear of failure by avoiding even trying anything I'm worried I'll fail at, which is no good at all. As Neil Gaiman said at An Evening of Awesome at Carnegie Hall, "You’ll learn more from a glorious failure than from something you’ve never finished."
So hopefully I'll deal with it by learning to try anyway and if I finish it and fail, I'll just start something new.