There are people who are making cool money in trading despite the loss after all loss is paramount when it comes to trading or investment, those who are into trading sometimes do even more better than ordinary investor reason because, some of them anytime they made profit in their trade, they split the money and use some to invest while they are still trading, knowing how to this is very good and interesting.
Talking about the bold words in your statement, yea it's true, but have they told you their stories of how much they have lost before gaining perfection Or being profitable?
Some might not even gain perfection after all the losses, so the best thing is to think investment in Bitcoin only than be thinking of doing what might not have head or tail.
To be honest with you here trading can't be compared with Bitcoin investment because with Bitcoin investment you will not only gain financial freedom and stability, but you can also build a generational wealth overtime, with constant building your Bitcoin portfolio through the DCA accumulating approach and holding relentlessly for a very long period of time.
But in trading reverse is the case, due to chasing of small small profit that can't change your financial status forever, you might lose a significant amount of money that might put you in deep shit, so I urge you invest in Bitcoin and hold for a long period of time, than be thinking of trading your Bitcoin for small small profit or trading fully that may be a self destruct for you or anyone that doesn't have the right skill and knowledge in mastering the craft.