How to build a reliable trend trading system? Let's discuss

How do you view the theory that review is useless?

What kind of system can accurately locate support resistance and trend when doing transactions?

Tell me how hard you have worked to make money in trading?

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

In the era of bad technical indicators, can you still make money from technology?