A liposuction is worth it if you are a good candidate. At 300 pounds, I expect it would not be the procedure of choice for you. Liposuction is not a wait loss procedure. After you have lost down to a practicle weight, then the resuting areas that need lipo can be liposuctined successfully. If you cannot lose the weight, you may want to consider a lap band or even by-oass surgery. Regarding diet, habits are hard to break, but to lose weight, you must limit your simple carbohydrate intake, such as any dessert, bread particularly white), rice, potatoes, pasta, and any sugar. Andof course simple exercise such as walking is necessary, but the diet will make the largest implact.