Serena,
This is the 66th (?) time you post this same nonsense. Sadly the stock market does not suit everybody. Sometimes it could easily driven one's mental health to an insane level.
Judging by your Post #: 37821753:
"........A simple illustration is that after the soccer match and you know the winner, and you are given to choose the winner after the fact, but you choose not to put your money. Why???? If you can not understand this simple logic, there may be something wrong with your common sense......"
I have come to the conclusion that you really need to seek help ASAP. Try this https://mhaustralia.org/need-help
Good luck.
Pikapika