After a year, a lot of lessons that we did learn. There are 2 precious things that I think I should remember:

+ 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?