DXY is still showing weakness. Is this a Seller trap?

How can I have the ability to make stable profits?

Fund management has always been a headache for me. May I ask you guys, how can I do a good job of position control?

As a "trader", what trading discipline do you have to restrain yourself?

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 understand the phrase "the simpler the trading system, the better"?

What is the degree of simplicity here? Or the simplicity here is not what I thought, just use a few indicators, so what do you think of this sentence?