关手机，休息。

What should I do if my trading system encounters a retracement?

My usual trading system continues to fail, what should I do?

If a trading system built by myself often fails and causes losses, should I abandon this system and replace it with another one? Is there a stable and profitable trading system?

What books did you guys read when you created your own trading system?

As a "trader", what trading discipline do you have to restrain yourself?

What cognitive biases do we have to overcome?