This is all a scam. First of all, I will teach you some simple things to make you feel simple and easy to operate. At this time, you will feel good. Next, I will let you pay for the complete course and brainwash you. I won't pay too much attention to you if I buy the course. Then the courses you bought are very boring, and almost all of them are copied and pasted from other places. Therefore, it is best not to believe this kind of scam.