This artist journey is not for the faint of heart. Along the way, I've found these resources to be helpful touchstones to return to, time and again.
Mastering Creative Anxiety by Eric Maisel
Bird by Bird by Anne Lamott
Writing Down the Bones by Natalie Goldberg
Letters to a Young Artist: Straight-up Advice on Making a Life in the Arts by Anna Deavere Smith
Still Writing: The Perils and Pleasures of a Creative Life by Dani Shapiro
Maria Papova's blog Brain Pickings, a source of beautifully curated resources and inspiration.