Being unorganized will not yield good results in most pursuits and weight loss is no different. Along with having a customized diet plan in place you also need to keep constant track of your progress. You can track the amount of calories burnt and calories eaten using websites like HealthifyMe.com. As for exercise make sure you have a chart for both cardio and weight training. This will also be motivating because even though you may not see drastic results in the mirror you are likely to see them on your chart. In case you are not running on a treadmill
