“There’s a songwriter who wrote all of her music in the same messy room in an old office building. It hasn’t been touched in thirty years and she refuses to let it be cleaned. The secret is in that room, she says. She believes it, and it works for her.
Charles Dickens carried a compass to make sure he always slept facing north. He believed that alignment with the electrical currents of the Earth supported his creativity. Dr. Seuss had a bookcase with a false door hiding hundreds of unusual hats. He and his editor would each pick a hat and stare at each other until inspiration came.
These stories may or may not be completely true. It doesn’t matter. If a ritual or superstition has a positive effect on an artist’s work, then it’s worth pursuing.” –The Creative Act: A Way of Being by Rick Rubin
Belief is a choice.
So choose wisely.
Choose beliefs that empower and energize you. That give you confidence.
If need be, find evidence that supports your belief. Examples of people who accomplished what you set out to do (and in many cases with far less advantages and opportunities) are abundant.
Then demonstrate your belief to yourself (and others, if that’s important to you) by taking consistent action. Small, everyday wins keeps the belief flywheel turning.