Trading isn't a quick way to get rich because it's tougher than it seems. Success lies in knowing the craft, controlling emotions and managing risks you can afford. Mistakes often come from thinking it's easy or relying on a couple of YouTube video so we should always verify our facts and do not always be impuslive in making decisions
You have said very right things about trading, because trading does not always work as before or as it has happened before in the market. So every trader really has to strengthen his knowledge and resistance to risk when market conditions start to go the way he didn't want before, so looking at references from YouTube videos for trading matters also won't guarantee that a trader will immediately get better results. Because the video was deliberately uploaded to attract more attention from many people whose profession is traders.
I watch in pity these days trading strategies and results from YouTube and others, they are just capturing the best moment which they can use to cajole people into believing their trading strategy or even use their system. Some could be free, while others could be paid, but in all, they are making sure that their online activities are active, it is the trader that will need to apply wisdom. But it is not all the strategies and approaches towards trading that are bad, only that they may not not as good as they claim they are, but trading needs more than what they are teaching people, while many of the ways they are even teaching are not supposed to be so. Nonetheless, it is still a plus that they will eventually introduce the trader to something and that is fine, it is now left to the person to practice what they introduced whether or not they will work and to continue learning as trading needs much of learning and I do not think there is a stop to it, ever.
In addition, trading is a survival of the fittest and traders should know that they can't get it all done in a single day. It needs patience and the perseverance of the trader, and this must be worth it if the trader is learning continuously. That is the only way improvements can happen. I also urge all traders who are still searching for a trading strategy to be sure that they have good management and plans, they should not leave themselves to emotion, a good trading psychology will also help the strategy you know to work. It is not all about the strategy alone, the way the trader uses it matters too.