I think it should be adjusted in terms of frequency and total amount. Do 6-7 groups at a time, practice two movements and exchange movements next time. And generally focus on training upper and middle muscles. The time interval can be within 1 minute. Generally speaking, the faster the frequency, the smaller the number of each group, which is more beneficial to modeling. For your current quantity, you should first pay attention to the volume of transactions, so if each group can achieve 15, you still do 15 at first, and there is nothing to earn later.