Best way to identify trend for beginners

How do you view the theory that review is useless?

How to explain leverage in the forex market?

If you want to make money in trading, what principles do you need to understand?

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

In the face of sudden black swans, how should we deal with the risks in transactions?

There are many sudden changes in the foreign exchange market that will make people unprepared. For example, when I was facing a black swan before, I still wanted to carry the order and did not want to stop the loss, but there are many risks, such as the risk of jumping high and low overnight. Excuse me How is everyone coping?