Fat, broke, and unhappy is never a good look. In Knockout, Mike Kennedy tightly packages all the old school common sense that is so uncommon in our current era. The strategy is simple and the conversational style of writing is condensed for an easy read. You don't have to be rich, smart, good-looking, talented, or lucky; this book is all about success through behavior. Just do what the book says and you'll knock it out.
Having been raised reading Norma VIncent Peale and Zig Ziglar, I was familiar with many of the topics in the book (although always good to refresh). It is a short concise book you can read in a day or so that can kick start your motivation. For anyone stuck in life, check it out!