This is concrete advice. Learning frameworks are like learning fully specified tools, and be done with it. You need to learn driving a car, and related technic

This is concrete advice. Learning frameworks are like learning fully specified tools, and be done with it. You need to learn driving a car, and related technics for racing/driving, not driving an F1 car, unless that you need to race in the F1 race. So learning driving and general driving/racing technics is a better investment. You are going to use - mostly the same technics - even if you are racing in F1 or in Nascar, or even driving on the road commuting to work. And you know what? You would be commuting to work, or training more than you are in an actual race.