@Jzwu2017,
@rb7,
@Sprout,
@SunTrader,
@deaddog,
@Bad_Badness,
Thank you all for your thoughtful comments. I certainly have my own doubts and that is why I created this thread. Here are some of my own thoughts:
1. In general, when something is too good to be true, it is not true. This almost borders on that.
2. I am no genius nor an elite trader by any stretch of your imagination. It is very unlikely that a dumb trader like me can come up with a winning day trading method when millions tried and failed.
3. Every day, after the market closed, I re-looked at all of the charts, every entries and exits, re-traded them based on "ideal" entries and "exits". The "ideal" trades were about twice as good as what I recorded. That is a red flag.
4. I expect when I go live, it will be much worse. Day trading is, I take two large numbers subtract one from the other and call the very small difference "profit" or "loss", I am not naive, it doesn't take much, e.g., time lag, non-fill... to go the other way. That is another red flag.
5. The method requires aggressively limiting losses, so every day at least half of the trades were small losses. Profit came mostly from one or two good runs. Letting profits run is extremely important but very tricky because of aggressive loss taking and in real time when things moved around rapidly. This is the third red flag.
6. Taking loss is not an issue with me, my options win rate is around 30% so I can take loss. The real psychological issue for me is I need to be decisive whereas in options, I am very deliberate before pulling the trigger.
7. It may be a mirage?