The only way you'll lose weight permanently is to accept total responsibility for yourself and acknowledge the fact that you have the power to change, regardless what mother nature has given you to work with. There's no denying that heredity plays a major role in how difficult it will be for you to lose fat. You inherited a body type, metabolic rate and body chemistry just as you inherited your eye color and hair color. While there are no absolutes, Sheldon identified three basic body types, ectomorphs, mesomorphs and endomorphs.
Ectomorphs are the lean, lanky types.
These people can eat like a horse and never gain an ounce. They are usually very thin, with fast metabolisms and extremely low body fat. They are muscular and lean and are natural athletes. Mesomorphs lose fat and gain muscle with ease. Endomorphs have slow metabolisms, they are often carbohydrate sensitive, they gain fat quickly if they eat poorly, they gain fat if they don't exercise, and they may stubbornly retain body fat, even on a healthy diet.