"You can't use up creativity. The more you use, the more you have." -Maya Angelou
Have you ever started a project with an idea of the finished product, only to have the idea evolve and change as you work? This is a regular occurrence for me. When I was a teenager I found it infuriating. Now I roll with it. My brain and the universe have reached some kind of agreement wherein the universe provides a constant stream of inspiration and my brain mashes it all together and stirs it up and then provides me with what I need as I work.
The biggest, hardest lesson is this: if you don't work, the ideas don't come.