Dump more then 10-20% in 1 day in crypto like bitcoin is may cause a fear Because we know much of Bitcoin's pre-history that Bitcoin's price went down a lot from ATH. So it's natural to be scared when such massive dumping takes place. Something like that happened recently. However, those who know the history of Bitcoin also know very well that if Bitcoin is held for a long time, it can give many times more profit, so those who are real holders are not afraid of any situation.
Why be scared then? You know that Bitcoin's only going to go up because presumably you've been through more than one cycle by now. So it makes no sense to panic over your portfolio going down by 10% or 20% unless you've only just heard about bitcoin and bought it yesterday like the guy above you wrote. But even that can be solved by not looking at the price more than once every 12 hours.
Our main problem is that when we invest in Bitcoin or other cryptocurrency coins, even though we say we are investing for long term, we see the market several times a day whether we are in profit or loss. And it makes us panic when the price of Bitcoin goes down by 10-20% and our investment amount comes down by 10-20% right after buying Bitcoin. Refraining from watching investment crypto prices frequently can be a good solution to reduce panic. And for this it is necessary to occupy oneself in some other work or in some other thing