I have spent 15 years reading books and examining my life style eating habits. Here are 3 books any one of these will get you on the right track.
Trust me it works when you get serious.
Fat Chance: Beating the Odds Against Sugar, Processed Food, Obesity, and Disease
Robert H. Lustig
Why We Get Fat: And What to Do About It
Gary Taubes
The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman
Timothy Ferriss