Sometimes when I have a creative block, I know I need to get some quiet, peace, and meditate. It is said that a creative block is a sign of blockage in the Sacral Chakra, just above the navel. If you are a beginner to Chakras and meditation, there is a great site that lists an abundance of information about the 7 core Chakras, and includes meditations for each of them: https://blog.mindvalley.com/chakra-meditation/
Another great site: https://www.mindbodygreen.com/0-91/The-7-Chakras-for-Beginners.html