Some people can't adapt to training institutions! Training institutions cannot be suitable for everyone. Just like a chef cooking, it is impossible to satisfy everyone, because everyone has different tastes, some people have heavy tastes and some people have light tastes.
The teacher who studies this thing can only teach you the basics, so no matter what you study, you should lay a good foundation, just like architecture. If the foundation is not good, you can imagine building!
If your learning ability is strong enough, your learning attitude is correct and you are more conscious, you can skip the training class. Want to know what the role of training institutions is? Is to provide you with a good learning environment and learning atmosphere, with the guidance of teachers, that's all, and the rest is to be mastered by yourself through repeated practice and more thinking!
There is a good saying: the master leads the door, and practice depends on the individual! Come on, man!