Why can foreign exchange margin trading go long and short?

As far as I know, many master traders will rely more on the sense of the market, how to cultivate this feeling?

For the real-time market, should we keep our original intention or follow the trend?

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?

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?

In the past few months, I feel that the more I study, the more I study, but it will decline. Sometimes I feel conflicted. I don’t know why?