I would advise you to try to build something simple and small. It may become bigger afterwards. Ideally, this (initially) small project would scratch an itch.

I would advise you to try to build something simple and small. It may become bigger afterwards. Ideally, this (initially) small project would scratch an itch. That way, you have something immediately motivating, small and simple working soon so you don't get lost (lack of motivation, too much complexity) and overwhelmed, and you can still improve it later.