I'd definitely start by taking a look at the React Navigation documentation. It's a library that provides a lot of tools for native navigation and page routing. In my opinion, this is the most important library (apart from React and React Native) to learn to have the skills to be an entire React Native app.

From the React Navigation docs they suggest taking a look at these resources to get the fundemantals sorted:

1. React Native Express - teaches all the basics of React Native 2. Main Concepts of React - Allows you to understand how React works 3. React Hooks - Provides specific reference towards using hooks in React (they're addictively useful)

[1]: https://www.reactnative.express [2]: https://react.dev/learn/thinking-in-react [3]: https://react.dev/reference/react