You have to accept the reality, the coach can consult, you ask, the coach guides you, and it takes 3-5 minutes to be enthusiastic. You have a coach to apply for a card, just to prevent you from being injured, to teach you how to use the equipment simply and to teach you how to use the equipment. As for how to keep fit, it is out of his service scope. If you want to make him better, it's a private education course, you can buy it yourself. Many private tutors are boring. When asked to teach, he was very enthusiastic at first. After a few festivals, he said this and that, recommended many products to you and bought them from him. If you don't buy it, your attitude will change, you won't be able to attend classes after class, and it is difficult to refund your money.