Don't be too stressed. In fact, according to different muscles and bones, everyone has different proportions of weight and figure. Don't worry too much, symmetry is good, but the waist, big arms and double chin can be moved a little. For the waist, you can practice some simple Latin aerobics. For the upper arm, you can stand up straight after meals, lift your hands horizontally outward, and push the upper arm hard, so that the forearm suddenly relaxes and droops to keep the upper arm horizontal. One group is 10 times, and there are three groups. Push your chin up with this full tongue, 15 times in a group, 3 times, once every morning, once every evening.
Finally, I offer my personal experience. Don't put on your favorite pants, and stand at least 1 hour after meals. After half a month, I successfully put them on. This method is effective for many people around me!
Finally, I wish you success!