Inspiration is everywhere so don't get trapped in reading and watching too much. Get out. Talk to people, friends, family, loved ones. Draw inspiration from everyday life. It has inexhaustible references and is always original.
Fairy tales thrive on black and white. In life, there's only grey - no bad guys, no good guys. You could be the Cheshire cat, Snow White, a troll pr a pastry-making witch whose diet consists only of little kids, but you'll always be you.