One of the reasons why traders loose money everyday in their trading is 'greed'. A trader will hear about a particular coins he wouldn't even do research or proper findings to know the future of the coins which he wants to trade his money on but rather the greed in the trader will push him to use all he has with the aim of making 4 or 5 times of his trading capital.
Traders are big risk takers so everyone should know what he or she is trading on so that when you loose which is normal, you will learn more.
No trader is perfect but mastering coins you trade on can help you, remember trading is like a gamble you either gain or loose.
Do not trade with everything you have,your egg can not be save in one basket, I have lost but I have gained more in trading with the help of research and mentorship programs.
Greed is another problem that investors do experience in the market. Greed is capable of making a trader to loss huge fund if care is my taken. Trading is like a life trading or school. We learn everyday and we should be prepared to fight greed because it's the normal one problem of humans we it comes to trading.
I have lose some good amount of profits back to the market because of greed. Learning how to trading is a different thing when it comes to consciously monitoring you emotion and mindset.