I was a German major back in the old days before audiobooks were readily available. Thanks to extensive reading in German, I am still able to do much of my personal reading, news, and video in German, all these many years later.
Audiobooks would be more important for a language like French, where pronunciation and spelling is a challenge.
German spelling and pronunciation is straightforward, so you don’t need the audiobook quite as much.
The most important thing is picking out material that you find interesting and fun, whether it is reading, audio, video, movies, flashcards and computer apps, books, magazines, live people, e-mail and texts, or a combination of things. Try reading without listening, listening with and without a transcript, and see what works for you.
I managed to finish the “Wizard of Oz” in Russian on Linq with about 75% unknown words. Now that I’m reading easier kids’ stuff, i’m finding many of my flashcard examples are from “The Wizard of Oz”, which is a lot of fun.
If you are able to make headway on a difficult book after only 6 months of study, congratulations! When you’re ready, you can try out some easy content on Linq, and review the flashcards for the easy content before reading it. Then you’ll see example sentences from your challenging book.
What you enjoy will change from time to time. So don’t be afraid to mix it up!