I read a book called "The Compound Effect," by Darren Hardy. It was particularly helpful in changing some bad habits I had around diet and sleep. I'm now drinking a TON of water and sleeping more each night. I haven't read any fiction in a long time. I'm saving it all up for retirement :)The Compound Effect is a distillation of the fundamental principles that have guided the most phenomenal achievements in business, relationships, and beyond. This easy-to-use, step-by-step operating system allows you to multiply your success, chart your progress, and achieve any desire. If you're serious about living an extraordinary life, use the power of The Compound Effect to create the success you want.
That book might pair well with the key advice I took away from that Scott Adams book: I've grown very fond of the idea that small changes held onto for a long time are the key to systemic changes in life. It has something zen to me; it's okay to not be at your goal yet if you're doing something to actually get there. Speaking of sleep, I think you might enjoy the Matthew Walker book I'm reading now. He basically argues that sleep is a panacea of health benefits and the key to a longer, happier, smarter, more productive life. (And if it seems like too large a book, you can read the chapters in any order you like, although I do recommend reading the first three chapters as they cover the basics.)