2. Turn your back to the wall, put your hands on the wall, and hold it down slowly. Don't be afraid of pain, but it's best to have a wall and a bed next to it, because it may be unstable at first. Don't practice too much every day, and it's best not to practice more than 20 times. Slowly, just practice for a while, and you can bend down freely!
3. Exercise the waist first, and then practice lying on the ground. After a period of practice, the teacher will supervise your lower back. Continue to practice lying on the ground to support yourself. If you go down a little, you will need help. Later, you will be fine. You can come down by yourself and hold your waist with your hands. It doesn't hurt at all.
4. Stand still, bend back until your hands touch the ground, and then continue to shorten the distance between your hands and feet, but if you are a friend with a weak waist, you will fall. So find a post or wall, or kneel down and practice bending. The distance from the wall is inversely proportional to the softness of the waist, and then bend back until you touch the wall, so you are not afraid of falling. Just practice for a while.