Everything is written right! Everybody is mistaken, both experienced traders and beginners. We can not control the market, the only thing we can do is not let the market take more than you can afford to lose. Before entering into a deal, you need to think not about profit, but about loss.
The most common that i make where in, it makes me poor in cryptocurrency and for sure a lot of people will relate to this, it is selling in a low price or during a market crash.