+ Fear
+ Greed
I learned that from my teacher, he said when you buy Bitcoin at 10k, it's then $12k your greed rises inside you and you don't want to take profit and expect more. Then, the downtrend is coming, BTC goes down to $8k, you'll be scared to cut loss, and what'll happen, you lose more while BTC drops to $4k.
So, we need to set up your expected profit point as well as the stoploss point.
How about you, what is your lesson?
It is both true when it pumps greediness arises, when it dumps fear makes you panic.The lesson i learned specially from 2017 and 2018 ,we have to understand the market flow.
If it pump it will not always be like that so decide when and set sell. And when there is blood in the market take the chance to store up because every dump there is a pump. Do a research buy the good ones and be patient.