> 1. Buy a book you genuinely want to read (if not genuinely interested, you will lose motivation).

This has been my issue. There's a really small set of novels I enjoy. The better (but not good) recommendations have been to re-read something I've already read as a translation. I have never re-read a novel in my life and I'm not sure it being a frustrating experience would make it more appealing.

There's probably a market for something that helps connect people to books/stories/media they would actually like in other languages, ideally that isn't already commonly available translated.