That's a good piece you have there. Though it might not be as easy as you think, it is still good to, at least, follow/practice, as trading and all other things that are psychological are not easily approached with a certain blueprints.
We've seen some failing and devastated traders who later found their secret sauce, and we've seen many of them who would never find it, so I believe, above all things, as we are all finding the right system, we should, above all, work on limiting our risks and embrace adequate account management. Anyone limiting their risk while they try their luck in trading will have both good and bad days, but the bad days will not be as bad to warrant devastation to their finances.
It only tells that trading is not for everyone. Some are consistently good at it, while others are obviously enduring the losses while they are learning to navigate the trading market. But at the end of the day, there are just traders who never fit in trading, so let's be realistic here, quit trading and find another side hustle that will guarantee profits, even without consistent losses at first.
Trading is good and is certainly more profitable compared to just investing alone, but trading will also make you poorer than ever especially if you realized late that you're not supposed to stay trading in such a volatile market.