Actually, I felt the same way before, but I like it there since I played a new trump card:
First, divide classes, one class is good, and the other class is better;
Second, the number of students is small, about 10, and the class atmosphere is really good. Don't leave after class, you still have to ask the teacher questions.
Third, you can charge monthly. If the family condition is not good, just pay it every month.