Sure enough, I still remember the time when I had no other choice but to sell my bitcoin holdings for something urgently needed. My long term investment plans are ruined even though I can still build the portfolio again at another time, but it's true that long term bitcoin investors also can always ruin their plans unexpectedly.

At the same time, I didn't have a lot of money to go without selling bitcoin, but then I started to think that the saving budget portion should be at least 2x bigger than the investment budget. If only I had thought about it in advance and prepared for it, then I don't think I need to spoil that long-term investment plan. But never mind, it was a lesson that later taught me about how to manage finances between savings, investment, and meeting needs.