The number one rule is: cut your losses short. Everything else is secondary. If you can do that one thing, you can survive long enough to get good.
I don't have an opinion on the stock market. I have rules. My rules tell me what to buy and when. My opinion tells me nothing useful.
I dropped out of high school. I had no mentor, no training. I just refused to stop until I figured it out. Most traders quit right before they would have gotten it.
You have to let winners run. That is the hardest thing to do psychologically. But the math only works if your wins are bigger than your losses.
Every great trade starts with a great setup. The setup does not guarantee a win. It guarantees the probability is in your favor.
The market does not care about your feelings. It does not care about your analysis. It only cares about supply and demand. Trade what you see, not what you think.