This thread started a while back, but I recently got into wine and learned one thing; time and patients is everything. Books are amazing resources but what really helps you learn is tasting, smelling, observing the wine.
Something I've done is choose a country (for me it was France) and learn about the grapes that thrive there. This lead to a rabbit hole of learning the regions within France and trying a few bottles from each. I'm still in France but I feel like I've learned so much from doing it this way as I see what each region has to offer in their wine.