This method is the best way to write, and it is widely used by calligraphers, because the arm won't lean on the table and there is no obstacle.
3. Beginners should practice block letters and write lower (about 1 inch from the root of the pen) to make the strokes more stable. Writing regular script is difficult to master because of its high writing level and great changes. Don't write too loosely or too tightly. Writing is skillful and not fatal.
4. If you don't feel that you are exerting yourself, you can play freely, then you are overstepping the mark.