I think the top reason why traders are failed in trading is greedy,inpatients, lack of knowledge and no have yet experience in trading.I know that trading is basically buy low and sell high.but not just to think.it needs to view the project of you're coin that you trade that's why many traders have loss.its just because they don't know the project of coin if good future or not.
Most of the traders today are failing because they are all impatient, most of them tend to sell their coins at the lowest price when the market is dumping its price and from there they are losing a huge amount of their investments.
Aside from they are impatience mate, most of them too became out of control in terms of controlling their emotions.
majority of them are easily got panic when the price rapidly got down which is not supposed to be an action of a professional traders.
They must know how to apply calmness when the market is down, instead of anxiety will be apply take the opportunity to buy token while
the price was down then hold.