For other perspectives on artistic rejection, this New York Foundation for the Arts interview with Jackie Battenfield offers some great insights. Battenfield is a painter and frequent presenter about professional practices. She came to Oklahoma as a part of the Creative Capital's professional development retreat that OVAC partnered to present. Her new book "The Artist's Guide: How to Make a Living Doing What You Love" was recently released.
P. S. Her series of interviews, called "Reality Check Interviews," with artists about focused topics are fascinating.