It depends on two things mainly, the amount which you are investing is your own or someone else and another thing is that the amount is of no use or your daily use, if these two things were known then it is easy to understand your planning that how can you invest comfortably and which coins would be better for you at the moment.
I have to say when you are dealing with someone else's money then there are two types of people. One of them will be scared even more, while being more risky with your own money it would be silly to be risky with others money and you could end up losing money by doing something like that and it would be very bad business if you lose someone else's money.
The other type of people would be even riskier with someone else's money, if you lose it then it is not yours to worry and would move on like nothing happened. Unfortunately the second type of people make a lot more money because they do not care, and emotions are not a great way to trade so not caring about it usually profits a lot more.
Following you with your statement, the last part is true, there are people who earned more as they are not thinking too much about their investment, they are capable of risking everything in hope that the market will favor them, no emotion but full of trust with their knowledge, the kind of confidence that increase their patience in waiting for the market to pump high.
Those who are worrying that much are mostly the people who lose inside this business. They are being moved by their emotions, without knowing that instead of earning they are burning their initial capital.