This is where many got it wrong, they tell that they're going to hold but they don't have concrete plans when they're going to take profits. It's understandable with those people that have said that it is going to be their retirement fund so as they hold Bitcoin and that's going to be what they'll be up to for several years, many decided to go for 5-10 years and even longer as long as Bitcoin still performs very well. But for someone who think of taking some profits, as long as you're up by 100% then that's already a decent time to take profit.

The others will be jealous with the profits of the others and they'd see it from the others that they've earned 100x-1000x and that's some thinking stuck on their mind. With that, they'd assume that they should also take profit when their holdings multiply that vastly. But to tell everyone that have that mind, it's not going to happen to all of the holders and investors and even the greatest traders, not all of them are good enough to take it.

It takes skill, timing and even luck for someone to earn that much with investing and with trading. We've got our own paths with long term holding and the same goes for trading so, stick to the plan and activity that's profiting you and don't look at others profit because you'll have it compared with yours and it will only give you a disappointment instead of being satisfied with how much you're making.