How about the math tutorial class in Gao Lian? Is it necessary to report to class? Please ask experienced people for guidance.
If you really have the heart, you will find a set of problem-solving routines that are suitable for you and easy to use, instead of relying on other people's methods to achieve business goals! Everything has a routine, even his business routine! It's up to you But from my point of view, maybe what he said was also said by others, so I'd better sum it up myself!