There are no secrets to weight loss, just applications. It is usually just a matter of figuring out what works best for you and working it into your life. While there are some things that should be avoided, in general there are few ways to really go wrong. The best methods mix a little exercise and diet into the lifestyle of the person in question, working to maximize the weight lost in favor of a healthier lifestyle. It is just a matter of figuring which methods are favored by the person in question, usually favoring diet over exercise.
However, do try to avoid extremes. Burn-out exercises usually do not work as well as people think they will. The idea is to do so much exercise that the body feels sore for a few days and then repeat when the body feels better. The problem is that exercise only works when it is consistent, and that implies a somewhat daily regimen where exercises are rotated in for the optimal amount of workout. A consistent exercise plan means that body is better able to heal up and allow for its needs over the long haul. It also means that the body can get stronger faster.
Avoiding extremes also applies to diet. Crash diets, usually dependent on a vegetable soup and a few snacks, should be avoided like a plague as they do little more than get rid water weight. The best diet is always going to be one that allows for the needs of the body over the long haul, and that means a good mix of nutrients and calories, of oils and proteins. Setting up a good diet and exercise plan is not that hard, especially for those willing to do some research, so do the research and find something that you can really get behind; with any luck you will be enjoying it for a long, long time.