Creating and Licensing your own work

I want to create a show that is about wizards going to a wizard school and to ensure I don't get a copyright strike, I should need to disassociate from the Harry Potter brand completely. That means names, plot lines or character roles that are somewhat similar to Harry Potter must be changed.

My book would be about a girl who dies at a young age by accident and is then transported to a new world by the God of death. In this new world she makes friends and goes to a wizarding school teaches her how to use magic. She would live on her own and and travels all the land in hopes of defeating the God of death that sent her to the world. 

To prevent a copyright strike I have created a new world in which everyone has magic, plus the setting of the world would be more fairy-tale esc and fantasy inspired. Names like "muggles" and such will not be used as even J.K Rowling herself got a copyright strike for this back In 1999, American author Nancy Kathleen Stouffer alleged copyright and trademark infringement by Rowling of her 1984 works The Legend of Rah and the Muggles and Larry Potter and His Best Friend Lilly. The primary basis for Stouffer's case rested in her own purported invention of the word "Muggles", the name of a race of mutant humanoids in The Legend of Rah and the Muggles, and Larry Potter, the title character of a series of activity booklets for children. Larry Potter, like Harry Potter, is a bespectacled boy with dark hair, though he is not a character in The Legend of Rah and the Muggles. Stouffer also drew a number of other comparisons, such as a castle on a lake, a receiving room and wooden doors. Portions of Rah were originally published in booklet form in 1986 by Andes Publishing Company, a company founded by Stouffer together with a group of friends and family. Andes Publishing filed for bankruptcy in September 1987 without selling any of its booklets in the United States or elsewhere. Rowling has stated that she first visited the United States in 1998.