I find this thread to be interesting because there's so much to learn and because so few of us ever really get close to "figuring it all out", even after fly fishing for decades. I find that I'm a slow learner and incredibly stubborn and because of that, it wasn't until I put everything else aside that I started to learn to fly fish efficiently and effectively (and still have tons of learning to do).
Not fly fishing related, but some will draw an analogy and take something from it. I decided as a young man that I needed to learn to fish a jig 'n pig for bass, so that's what I used for one whole year, spring, summer and fall, nothing else EVER. The following year I wanted to learn to use a spider grub/jig, so that's all that I used spring, summer and fall. I didn't catch as many fish as I would have had I been more flexible with technique, but you can rest assured that I could fish the hell out of a jig 'n pig or a spider grub.
I recently retired and moved seasonally to a lake that has a very healthy Spotted bass population and a dwindling Crappie population. I asked every local about how to find and catch Crappie, including all of the guides on the lake and the biologists for the state. They ALL told me that I'd catch some very big Crappie incidentally, but that there weren't enough of them left in the lake to make it worthwhile to target them. Well, I'm stubborn (as evidenced by my willingness to fish nothing but a jig 'n pig for a whole year) and I vowed to figure it out and to catch good numbers of Crappie on the lake. My first winter/spring (I only live there during winter and spring and spend summer and fall up north), I caught only 5 or 6 Crappie all year even though I pursued them at least 15 or 20 times. My second year on the lake, I caught 40 or 50 Crappie in the same number of trips, but still not what anyone could call "good fishing". Finally, in the third year I had them figured out enough that I caught hundreds of Crappie that winter/spring and caught 50 of them that were at or over 14". Sometimes it takes that sort of mentality to really "figure them out".