I will never be able to calm down if the coin price at the exchange place falls because it can make me lose a lot and lose the assets that I have. I better secure assets by selling them even at low prices.
I always calm when the market is red because it is the best oppurtunity for me to buy more coins that i will hold for long term, and when the market is falling i am not worrying because it will recover again, but off course it will take long time before all the price of coins will be high again.
When the trend is negative, people are in panic form and they make many mistakes. This is the result of their fears. If they can keep calm during dump times, the things will be much easier, yet they don't understand this.