Maybe you should start off by gathering information on what people expected and wanted to see in the prequels. Write down ideas that you think can work and are acceptable in a Star Wars story.

After that, write a story outline. Post it on here and let others rip it apart - let them express their opinions and suggestions. And then - after the received criticism - rewrite your story outline and let them rip it apart again. And then again and again - until you have a story that is acceptable for at least 70% of the people.

It's impossible to please everybody, so you have to focus more on what you want. Cause, ultimately, it's gonna be your take on the Star Wars back story.

I wish you good luck with this and - just so you know - no one is going to judge you if you decide to drop this idea/quit this project. Cause it takes a lot of time and patience to create a good Star Wars story.