Offering free teaching often marks the beginning of making enemies, whether man or woman, because human nature is like that, "Kindness in rice, hatred in a fight over rice," as an ancient saying goes. Most people are not cultivated; greed, anger, and ignorance are more prominent, and in the end, they will turn around and hurt you.

From a human nature perspective: when you freely share knowledge, experience, or even wealth opportunities, the other party subconsciously believes these things cost nothing to obtain, so they won't cherish them.
If the other person benefits from your free guidance, they will think it’s because of their high comprehension; if they fail due to poor execution, they will immediately turn to resent you. "Teaching" in psychology means you are stronger or wiser than them; for people with a strong ego or fragile underlying logic, they will hate you.
Sometimes, when someone receives many favors, they carry emotional debts. To get rid of this psychological burden, the simplest way is to find your flaws, deny your motives, and turn you from a "benefactor" into a "hypocrite." In this way, they no longer owe you anything.
Recently, many private messages have asked me about individual stocks, how to operate, how to get caught, can they recover, or whether they can add to their position, etc. Don’t ask me privately; I won’t say anything, as I mentioned above. The gap in understanding between people is huge. I also don’t know what kind of person you are, and since you don’t send me red envelopes, of course, paid questions are another matter, then I will reply.