That's the topic of this book. I don't pretend to have all the answers. I'm still learning every day, and many of the good ideas here I've picked up from other people either directly or by reading. But this is what's worked for me.
Like life, this book is short. Many books I read could communicate their ideas in fewer pages. So I've tried to be brief in line with the wise person who noted: "If I'd had more time I would have written a shorter letter".
I don't think brevity implies lack of content. The concepts here have improved the quality of my life, and I hope they're useful to you as well