If you want to get leaner, you need to add lean muscle mass to your frame. Diets are BS I will tell you that right now. You want to add lean muscle mass, because muscle increases the number of calories your body burns, even at rest. While a pound of fat does nothing but take up space, a pound of muscle is an active, living tissue and requires calories to survive. My best advice for getting leaner is to try out one of the established programs available all over the web (or just ask, most of us will give you program options to choose from), do some homework on what looks best for your goals, and get active. Do you need to change your eating? I don't know. What does your diet look like right now?