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

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

Why is it so hard for an analyst to be the best trader?

What cognitive biases do we have to overcome?

Do you feel lonely doing business?

Watching trends and doing analysis until late at night, no one cares about losses, no one applauds profits, good or bad, only you know, are you lonely? Do you enjoy solitude?

Do you guys have any good suggestions to save novice Huiyou like me from taking some detours?