Henry Ford didn’t invent the car, he streamlined the production process. Steve Jobs didn’t invent the computer. He changed the way we thought about computers. He developed a computer for someone with good taste. Harley Davidson did the same thing. They took a bunch of outsiders and made them insiders.
Chances are you won’t make a new invention that we have never heard of or create a whole new field of science or discover a whole new genre of books. And that is okay. Your contribution is a twist on what has been built.
This is good news. You don’t need to invent something we have never heard or seen before. It means you have all the tools to get started. Go.