https://hillaryrettigproductivity.com/the-seven-secrets-of-t...

"Procrastination, perfectionism and writer's block are not moral flaws; nor are they caused by laziness, lack of discipline or lack of commitment. They are habits rooted in fear and scarcity - and the great news is that once we start alleviating our fears and resourcing ourselves abundantly, our procrastination and related problems are often remarkably easily solved."

It's directed at writers, but it's really for all perfectionists.