A decade or so ago, David Allen published a book called “Getting Things Done”. It’s a relatively short book, detailing how he organizes the projects and tasks in his life to enable “mind like water”, where he can relax and feel confident he’s doing what he should be doing at any moment. (This doesn’t just mean work.) It also describes project planning, and while it focuses on the nitty-gritty day-to-day task-by-task process, it discusses “bigger picture” planning a bit too.
It was a life-changer. The book, however, assumed you were a business professional, working in an office with a lot of paper.
In 2015, David Allen re-released the book. I just read it this past month. I’ve been living this life for a decade, and I can say the re-release is awesome. It doesn’t assume you’re a business professional. It isn’t nearly as paper-heavy as it was before (although I think he still talks too much about file folders for me…).
Anyway, if you haven’t read it, or tried before and it didn’t seem to talk to you, it might be time to pick up the re-release.