Bitcoin is called a risky asset because of its volatile nature and that is why, one needs to invest with only the amount that he can afford to lose, so that if bitcoin price goes below his entry point, he can just ignore the price and keep on hodli. That is why it is advisable not to borrow money to invest in bitcoin so that you don't end up selling when it isn't your will, to avoid loss.
We saw Bitcoin price was stable at 30k USD few weeks back and then there is a dip triggered due to some news. Bitcoin in that DIP went down from 30k to 25k and that's the time where your nerves as a HODLER are tested. Its easy to say to HODL but not many can see there investment going down. That DIP is now over and Bitcoin price is moving up towards 30k again. If you have bought Bitcoin when it was down then surely you are getting some profit at the moment. Accumulating more when Bitcoin is down is more beneficial then when its up.
This is basically the most simplest but yet hard way for some Bitcoin investor. The Dip is handle by different investor in different ways as some of these investor tend to be frightened even though there are aware that their money in the investment won't dry off, that fear is still in their mind and they tend to succum to it and do the least of which is expected from Bitcoin investor who are planing to hold their coins for long .
While some other investor actually use this means as an advantage and this type of investors are the strong holder who always stick to their plans and strong principle when it's comes to tempering with their holdings (Bitcoin).