“Intention for reading is more important than randomly reading best sellers or recommendations” How do you know which book would help you at the moment ?

I have read a few answers around "timing" and "intent" is more important than randiy reading book from recommendations. My question is that based on one's current life situation and needs how do you determine which book fits you. Is the book that I'm reading really gonna help me, will I ever use this knowledge
I'm my life ?
am 23 currently striving to decide what to be in life. I want to be rich, not sure if that's the most ethical thought or not. But money is a solution to a lot of problems that I face now, so making money is my motto. But how, I am interested in a lot of things currently i work as a software engineer, but I love studying trends of the world and how makets react to these trends and want to leverage them for my own benefit. All this made me want a career in economics or finance. I have started reading "think and grow rich" by napolian hill. 10 pages into the book made me question if I'll ever benifit from reading this. I really really want to apply the concepts of what i read to improve in life.

Is it the right book for me ? Is my intent aligned with the subject of the book? Thinking to myself that I will never be able to apply the knowledge of this book in my real life a valid concern?