I am in this industry. Let me tell you what to ask. This is not an industry problem but a personal problem.

If you like it, just listen to it. If you don’t like it, just pretend you haven’t seen it.

First point, if you don’t trust yourself in sales, how can you get customers to trust you?

The second point is that when you encounter a problem in sales, you should first try to solve it yourself or think of a solution first and then go to ask for advice with your solution and questions.

Third point, as a sales person, don’t show your incompetence and cowardice. Because you now step into society and need to take on the responsibility of a job independently.

The fourth point is the money and time the company has spent to train you. If your incompetence is not worth the company's efforts, then why should the company train you? It can be said that sales is the industry with the most cruel rules among all industries.