The difference between hackers, good amateurs and the pros. I have never read a golf book, except my own when I edited them. The game of golf is hopelessly difficult to master. Nothing you read in a golf book or magazine is going to help you much, without concomitant practice and development of muscle memory for a decent swing.
Golf is like learning to play music .
Let's say you have zero musical background but, as an adult, decide to study piano. Your spouse is supportive, but you have a regular day job and can only practice on weekends. You will forever be an amateur of course, and not a very good one. Of course not - you know why you are not as good. For professional musicians, early, nurtured talent is a sine qua non.