Necessary and Sufficient Conditions for Realizing Stable Profit

Ask for advice on how to manage trading positions in order to achieve long-term stable profits?

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

How to accurately enter the foreign exchange point?

I have had a few positions liquidated recently, but fortunately the losses were not very large. I would like to ask everyone, is there any way to prevent liquidation? Is there any trading discipline?

How to choose between opening a position through a breakthrough and opening a position with a pullback in trading?