I don't see it as a mistake though. You simply don't know that the price will still make a push that high, plus you've already made a profit so it's already a wise decision. Perhaps you might feel some kind of regret since the price pushed higher, but what if the price went the other way? You'll have regrets too, and an even bigger one at that.
IMO, next time you want to invest, see to it that you will have something that you intend to store for the long term, and something to take profits from if the price performs quite well.
As long as we can make a profit, we should be grateful for it and not consider it a mistake. Because there are still many investors who experience losses
when investing in Bitcoin, so being able to get a profit is a good thing. After all, it is very difficult to predict Bitcoin price movements accurately,
so the most important thing is not how much profit we make, but we can avoid losses alone is a very good thing. If we invest in Bitcoin we want
to always make a big profit, it will only stress us out. So I never complain how much profit I make, for me is a fun thing to make a profit even though
the results are small. After all, if we make a small profit if it is accumulated it will be big too.