USDJPY SELL PROJECTION

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?

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 explain leverage in the forex market?

Seeking expert guidance, what is the difference between left-hand trading and right-hand trading?

Are you happy doing business?

There is no such question, so I mention it.