Sales lecturers are different from school teachers, and lecturers from insurance companies can sell insurance. Without actual combat experience, it is basically impossible, because everyone can understand it on paper, and it is not difficult to understand it. Why do you say it? If you don't have any experience, you used to start as a salesman. Being a salesman is a prerequisite for being a lecturer. Don't look down on salesmen, well-done salesmen earn more than lecturers.