Three weeks into the New Year, sticking to that resolution to exercise more or stop eating sugar or drink less may feel a little extreme. So, what do you do? Shrug your shoulders and reach for another cupcake? Log onto veganlife.com? Head for the bookstore to find somebody, anybody, who can guide us to be fitter, happier, radiant human beings? From the meditations of Marcus Aurelius to Benjamin Franklin’s “Poor Richard’s Almanac,” people have been reaching for advice on how to be more fully actualized since long before being self-actualized was a term. The writer Jessica Lamb-Shapiro set out to explore the 11-billion dollar industry of self-improvement books, seminars, and coaching to figure out why people follow them so devoutly--if they work--and what happens when they don’t. She’s written a memoir called, Promise Land: My Journey Through America’s Self-Help Culture.