Trading courses and coaches are useless- true or not

How to explain leverage in the forex market?

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?

How to determine whether your trading style is short-term or long-term?

How to distinguish between "noise" and "signal" in the trading field, and extract truly valuable information?

The financial market is flooded with a lot of information all the time, how can we extract something of real value from this information?