Year after year, readers pulled me aside at events and said, “I’ve never had a problem starting. I’ve started a million things, but I never finish them. Why can’t I finish? According to studies, 92 percent of New Year’s resolutions fail. You’ve practically got a better shot at...

When New York Times bestselling author Jon Acuff got curious about tapping into his full potential, he launched a research study with Dr. Mike Peasley. They asked more than three thousand people if they felt they were living up to their full potential. Fifty percent of people reported that 50 percent of their full potential is untapped. That means half of us are walking around with half-lives. No wonder Twitter is so grumpy.

Overthinking isn't a personality trait. It's the sneakiest form of fear. It steals time, creativity, and goals. It's the most expensive, least productive thing companies invest in without even knowing it. And it's an epidemic. When New York Times best-selling author Jon Acuff changed his life by transforming his overthinking, he wondered if other people might benefit from what he discovered. He commissioned a research study to ask 10,000 people if they struggle with overthinking too, and 99.5 percent said, "Yes!"

What if you could blow up your dream without blowing up your life? What if you could go for broke without going broke? What if you could start today? What if you already have everything you need to begin? From figuring out what your dream is to quitting in a way that exponentially increases your chance of success, Quitter is full of inspiring stories and actionable advice.

When Jon Acuff's book Soundtracks came out, one reaction surprised him. Parents across the country all said the same thing: "Do you have a version for teenagers? If I knew how to change my mindset when I was that age, my entire life would have been different." Why did they say that? Because truth grows like compound interest. Saving money when you're young has a bigger impact than it does when you save in your 40s. A single new soundtrack—Acuff's phrase for a repetitive thought—believed when you're 14 or 18 can change your whole life in the same way.