The mantra to a healthy body weight is a healthy lifestyle. If you are aiming at losing weight, it is important to calculate your current BMI and the target BMI. The target BMI should be in a healthy range. Exercising with adequate intake of calories is a healthy way of losing weight. Aside indulging in moderate amounts of physical exercise it is also essential to maintain a healthy diet plan. A healthy diet should consist of adequate amounts of carbohydrates, proteins, fat and plenty of fruits and vegetables to supply vitamins and minerals. Start with a healthy breakfast, moderate lunch and light dinner. I would also suggest a change in your exercise regimen. You may rotate between a gym, swimming, yoga, aerobics, jogging, cycling etc. Also keep a track of calorie intake and your work out. If still your weight does not seem to budge, I would suggest consulting a physician to rule out hormonal or endocrine abnormalities which may result in increased weight. If any abnormality is found, it would be treated appropriately.
Hope this helps.
Do you have any Thyroid issues that you are aware of??