I'm fascinated by psychology and how people react to this by receiving the mood and amplifying it themselves.
Let's say you are a person with 10BTC bought at $80k. When we went to 100k you sold some of it, like 20%, so you now have 8 BTC. It went to 124k and now is down to 111k. Logic dictates that you should be happy with 0 pressure to sell because you're nowhere near a loss and the price is above your last sell, and far above your buy, yet in reality you will most likely be unhappy and feel like you should sell more.
We can decide for ourselves once we are already into profits, any decision taken by us will only lead to more progress at the long run, sir may decide to sell now and later reinvest when the market plummet, while some may not sell, instead decide to continue with holding to the next bull season, which is definitely going to be massive, because the market more certain for what it renders in the future, once this is all about bitcoin in crypto.