Most people trade contracts, and losing money isn't because they can't read the K-line.

But because—there are simply no trading rules.
Every single trade they make is a spontaneous decision:
If the feeling comes, they go in; if they lose, they endure; if they make money, they run.
This kind of state—even if you occasionally make money—will ultimately lead to losses. Because you're not trading. You're making decisions based on emotions.
I later realized one thing:
People without rules, the money they earn is only temporarily stored in their accounts.$ETH