I agree with you, most traders are greedy for profits that usually cause loss of profits or loss, this problem often occurs when a coin he buys goes up he will want more and choose to hold and over time the coin falls below the purchase price makes him lose even though he already gets profit if he is not greedy, as a result he can only two things, namely hold or cut loss
for fear is very detrimental to traders, usually fear in trading will have an impact on losing profits and moments so just waste time by watching without action
So the conclusion is be wise, commitment and believe that the analysis itself makes you better at trading