I always thought that the waist and crotch should move together. Pass the tape through it. Remember that the upper body can't move and don't shake together. It's ugly.

I'll teach you a method, which is also a warm-up exercise for our teacher before class. Keep your feet apart, which is greater than the shoulder distance, and then do a little stance, and do some exercises in the front, right, back and left directions of your hips, that is, don't turn in circles, that is, don't twist in a hurry, slowly find the feeling, speed up a little, and practice a little. If you are proficient in these four directions, you can try to connect four points into a circle slowly, and then you can practice hip twisting.