You don't really need to go to any weight loss center. Let me teach you some effective methods. This is my real trial. A few years ago, after two months, my weight was reduced to 155 kg. You said you weren't very fat, so let me tell you about my method of reducing thighs. I climbed the stairs every day when I was a student, and then I read in the book that I climbed the stairs on tiptoe. In other words, put all the gravity on your toes and go upstairs with your toes. Walking backwards for 15 minutes every day is really effective, not only reducing thighs, but also reducing abdomen. Just try it for a month, and it doesn't cost money. It's very useful. You'd better measure your leg circumference every day