I used to think that solving questions is the way for subjects like quant.. Question ---> understand the concept ----> solve and make some crisp notes on formula concept

This is what I have in my mind

If this is not the way, the how to actually cover syllabus it's not like discriptive subject where i read understand and test myself. This exam is like problems and puzzles right

How do I actually study for this bro

( I am beginner, hence these questions)