If you want to lose weight, you must control your diet. If you really can't control it, you should also pay attention to try not to eat high-calorie food. You can use fruit instead. You don't want to go to the gym. You can also go out for a walk after dinner, or go home for a walk after work. You can also exercise properly. Personally, exercise is one thing, but eating less sweets or greasy food is more important. I wish you success in losing weight as soon as possible!