After drawing a page or a piece of paper in this way, gradually try to use the same feeling, arm perpendicular to the chest, and raise the pen in a normal writing posture, so that repeated practice can better solve the problem that the wrist can't grasp the weight.
After you have mastered it, you can add a reverse pen and tap the pen. Although it is the same straight line, it is of great benefit to seal script and regular script after getting used to it.