I can definitely tell you that I can't. Generally speaking, a quality competition will not sell so few courses at all. Every coach in the general experience class has his own fixed model. Muscle training is more particular than weight loss. A pair of simple dumbbells can change a lot of movements, so you should exercise with a series of reactions such as your physical fitness and physical condition that day. Some sports need a certain frequency, weight, number of groups, etc. Personal trainers also have the function of encouraging and preventing mistakes. A seemingly simple private lesson is actually very technical. I have also been a tutor, and I have never sold no less than 36 classes. A few classes are not enough for you to adapt. That's not smashing your own signboard.