Mostly of the points I can say comprehend for common doing by most of the traders as said in article can reach 96%....All of them are ended in losing their money while just 4% winning by earn the profit. Well, it is not easy to customise what can do and can't do for successful trader.
I think the most common problem with traders and why they loose is because they dont have goal setting and majority of traders are quite too greedy and full of unrealistic expectation. Some traders hear that people make millions of dollars in trading cryptocurrency and they think that it is a day job, or just a single trade profit, and when they see an increase, rather than take it, they feel it is little till they lose it all.
That point has been covered on above article on this: "Trying to Make Absurd Amounts Of Profit", actually this aspect is a part of psychological aspect. Trading is not only knowledge for trading but more than that is psychology. Greedy, too fear, not discipline, etc are psychological point.