Not only in trading but also in any kind of investment because as much as you would like to hold your investment, when you will check the status of the coins that you holding you got easliy panic after hearing or reading bad news about it and decided to sell whatever you have believing it can save you from big lost.
this is not very important to me, for some time ago I used to do sales in a state of emotion because it is related to the necessities of life, so there is no pause in my mind to hold some coins that I consider potential, maybe the passage of time can provide a solution to errors This fatal because many coins that look prospective.
I do not why you guys are trading coins all the time instead of holding. Hodl is the best way to make the money if you trading you are loosing the money for the few amount profit and finally all the fund you have will not be in your hand bro.
If you loosing the money on trading, maximum you may not fixed the selling when the right time and not buying the crypto currency when the price is low. If you done this both in the perfect time finally you can make more money.