I read a book called "The Compound Effect," by Darren Hardy.
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.
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 :)