Urgent!!! Urgent!!!!

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

What kind of system can accurately locate support resistance and trend when doing transactions?

Why are there so few stable profitable Huiyou? There are many liquidated and repeated losses? Is it really because of technical analysis?

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

I have been unable to set the stop loss in the transaction, how can I do a good stop loss?