But why can't I develop the technique by practicing the Etude? What is this magical thing I could learn by playing other things but not the Etude? If I work really slowly, and patiently, with discipline, why can't I get it? I can work on the notes super carefully and then what...? Why wouldn't I be able to play it?
I didn't say practice scales but why would you avoid it? Why would you avoid technical arpeggios studies too? Go back and actually read what we wrote. Develop skills and you can learn revolutionary in much less time. Quote what we wrote and question that don't just create new questions and look like you read past everything we said. Small works are exciting too if you can't find enjoyment in those then your journey will ultimately be stunted and with many holes on your ability.
I struggle to understand how it can take 2-3 years to build such a skill? Aren't you very inefficient if it takes you 2-3 years? What's so hard that it takes 2-3 years?
It's just some keys, it's like injuring yourself on a computer keyboard LOL. Is it common?