This still depends on whether the training institution you go to is famous. If you are not famous, if you call your customers, they may ignore you. And you need to rely on your own efforts, selling courses and arranging students' class time are very troublesome. You should coordinate each student. Generally speaking, if you are a junior high school student, you should get along well with their parents. If you are a high school student, you should get along well with the students themselves.

Any industry has a future, and sales are well done. Maybe one day it will become a manager! correct

Everyone should have hope!