US100 approaching a key confluence zone

I have been unable to set the stop loss in the transaction, how can I do a good stop loss?

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

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?

What would you say to yourself if you went back to your first day in trading?

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?