If it's related to Bitcoin, nothing. Luckily, in my opinion, everything related to purchasing investments in Bitcoin is still under-control, not following the hype when the price is rising, or panic buying at a certain price. And so far, it has never occurred to me to use money that is beyond my means, especially never using borrowed money. Because this would really be risky.
But the thing that is certain and has happened is my fault for being too greedy to reach a certain target and it has not been achieved, but it has dropped far until now. But luckily this is an investment in Bitcoin. As long as we don't panic to sell it, then my Bitcoin amount is still the same and what I have to do is be patient, waiting for the bull run later.
There are investors who buy bitcoin for long-term investments of 10 years or more. In this case, they don't try to sell bitcoin when it hits its new ATH, but hold onto it regardless of bear markets. But there are those who try to sell bitcoin every time it reaches new highs, this gives more chances if their capital is not very large and in this way they try to accelerate the growth of capital and increase the amount of bitcoin. But this is already more like long-term trading than investment, if you have enough knowledge and experience for this, you can do it, if not, then it’s better not to risk it, because you can waste time and lose precious satoshi.