Trading courses and coaches are useless- true or not

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

In trading, how to solve the problem of being hit by the market back and forth with stop loss? What is the basis for the solution?

Why do we still fail to trade after learning so many trading indicators?

I resigned yesterday, due at the end of the month, I want to do trading full-time, but I don’t know how far this road can go?

Why do really successful traders never share their methods or strategies?