A childhood belief about imaginary friends

When I was 5, I saw the Wizard of Oz for the first time. Then I made up my imaginary friend Mary who was exactly like the Wicked Witch of the West, but she was named after Mary Poppins. She had green skin, blonde hair, and was very beautiful. Guess I thought that skin and hair combination was beautiful at 5. She had a nemesis named Janet, who would always tattle on her. I threw Janet in the trash can a little while later because I hated her and never saw her again. I made up lots of stories about Mary, her husband Willy (after Willy Wonka), and their three daughters Kelly, Sally, and Erica. I made up LOTS of stories about them, and started writing them down at age 18. She was either a Wicked Witch, a vampire, a crocodile, an alien, etc. You name it, Mary was it at some point. Mary stayed around until I was 27 (I'm serious) and she only left because she said that I needed to write stories about other people.