What is the relationship between the Wave Principle and Fibonacci?

How to systematically learn foreign exchange trading?

Where should beginners start trading?

A handful of bitter tears, I have been trading for five years, and I still lose money, what should I do?

How to judge the trend in the early stage. ?

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?