There’s one thing nearly all of us have in common: we’ve made a New Year’s resolution at some point in our lives. Another commonality? We didn’t stick to it.

We turned to Chicago-based personal trainer, weight loss guru and author, Michael Moody, for advice on sticking to the most common (and most difficult) resolutions. His inspirational health and fitness book, Redefine Yourself: The Simple Guide to Happiness and his ten-years of experience will help guide you and, well, redefine yourself.