I think if you have a set of books and audiobooks that are a gentle ramp from your current level, you can basically spend an hour a day reading and listening with pretty low effort, and the other skills will grow automatically: human languages are a bit magical that way. But building a set of materials with a gentle enough ramp is the hard part.
I think if you have a set of books and audiobooks that are a gentle ramp from your current level, you can basically spend an hour a day reading and listening with pretty low effort, and the other skills will grow automatically: human languages are a bit magical that way. But building a set of materials with a gentle enough ramp is the hard part.