I'm 17, my weight is 65 kgs and my height is 5'4. My doctor told me that according to my height and age my weight should be 53 kgs. I don't want to join the gym. How can I lose weight in 5 or 6 months? I've been jogging 5 miles a day 5 times a week for the last 2 months. Why are my jeans tighter? No weight loss.