It's a dangerous temptation for a writer. We're often prone to toss the whole thing 'in the flames' when we encounter criticism, especially from those we respect. Thanks for defying the flames.
I'm fortunate in that my self-doubt is also a horrible procrastinator. It tends to show up after all is said and done, when it's too late to make changes...so somewhat useless.
Your "self-doubt is also a horrible procratinator." I like that.