If you don't get a good income in the last class, it's not worthwhile. After a class, you practice by yourself most of the time. If you don't practice, the new lesson will be difficult and the effect will not be good.

If you don't have a piano at home, I suggest you listen more when you study. If you don't understand, let the teacher talk more. Let the teacher speak more if you don't understand, even for an hour. You can also buy an electronic piano to practice at home. It's the same as practicing piano, but it doesn't have the effect of piano.

Of course, self-study is also good. There are many resources on the Internet, but watching videos is not enough. It's as hard to understand words as a staff.