How long would it take for a new-commer to walk through every available option? How much would it cost? What is the chance he should expect before starting the whole endeavor that any of the available options will help?

My available samples say: Years, thousands, and slim.

[...]

My original point, which you still seem to be ignoring, is that I am not and have never been advocating that a self-help seeker engage in a random walk of self-help books. I am saying that people who succeed in life have the attitude that they can find at least one useful thing in every circumstance they encounter, if they apply themselves to looking for it, and applying it. Cultivating that attitude is what I actually recommended, as you will see if you return to the beginning of the thread.

My question, however, was about the worth of studying the theories of which you speak, and in particular of interpreting your long comments that try to communicate them. Thank you for answering it.