Somehow, I doubt any of the 8 billionaires needed motivational books. Maybe, I'm in the minority, but I find the entire self-help, motivational, Tim Ferris, Gobundance, rah rah stuff to be pathetic and most if not all of the purveyors of this stuff to be on par with the salesman that calls me every 3 months from my car dealership to "see how I'm doing".
Just go out and start doing stuff. If you're not of a personality to do that, perhaps working for someone else and following a lead is more suitable for your personality. Nothing wrong with that.