The big result is only trend trading or high-frequency quantitative trading.

Because retail investors are essentially a structural scam.
This article is a bit long, but if you are willing to give me 120 seconds, I guarantee you will thank me in a few years.
I started trading when I was a teenager. I made a lot of money, thinking I was Batman. I also lost even more money, which hurt a lot, and even now I am still fixing the cracks from back then.
I've tried all the strategies that retail investors can access.
I even seriously day traded for a year, thinking I could finally turn things around, but the result was so miserable that just thinking about it still hurts.

How bad was my PNL at that time? Even my grandmother made more money than I did! And she just followed the method I taught her to automatically invest in Bitcoin.