I recommend: The Artist's Way by Julia Cameron to guide you to your best creative self through exercises, excavation and practice.
The Creative’s Way Where is your path to discovery taking you? Don’t listen to the skeptics trying to detour your ambitions into inhibitions. Using Julia Cameron’s book: The Artist’s Way: A Spiritual Path to Higher Creativity as a guide you need to complete tasks in 12 chapters to breakthrough the surface of your resistance in order to experience art and creating in its many forms. A self-guided workshop will most likely change your outlook on self-expression, and life, if practiced with a sincere desire to confront the fledgling artist in you. Pursue a life of possibility and curiosity instead of fear.
Note that the spirituality aspect of the textbook’s title is not referring to formalized religion but to the enlightenment and godly aura one finds flowing through creative energy in the universe.