This sort of "marathon" thinking isn't appreciated enough. You'll learn and do more with 10 hours/week of something for 10 years than 60 hours/week of something for 6 months. The latter severely underestimates the long term cognitive and sheer physical burden of intense effort.

Unless you are pursuing something that has an age or time factor (say, professional sports), I truly believe it's better to be a "marathon runner" than a "sprinter" when it comes to learning