I get bored from this discussion about how many win and how many lose. The only thing that matters is how do you do? As all the rest is irrelevant. Each successful trader was at start one of the 9xxx% losers, but ended up in the top. They didn't care about others and others didn't care about them. And for each of them the road was probably different, so there is no magic path to follow and getting rewarded with lots of $$$$$$$$$..
The world of professional trading can be a bit tough and demanding, but as fom me you are too harsh. We should not forget that not all traders want to earn big money and live trading. For some people it's just a hobby, a way to spend time with benefit. Of course, it's always sad when it doesn't work out, and I'm sorry that it happened to you as well. But it is reasonable to agree that for success you must not only be disciplined, but also have good skills and quick reaction. Talented traders should understand not only what they do and how it works. But they must have knowledge in economics and politics. This gives an opportunity not only to "feel" the market, but also to make forecasts for the future and know what to expect. And despite all this, I think there will be more than 5% of them)