Ofcourse, it won't be fulfilling to do so and may sometimes yield to regrets but that is how investment works. We have different circumstances as investors and there will just be times wherein you need to make adjustments to balance things out perhaps emergencies and such. No one wants to go in contrast with what's planned, 'coz you already have intentions in the first place. Not only in this industry but to all investment industries. Also, it won't be surprising to know that this instance is also frustrating at some points.
I think most of the people who stick with cryptocurrencies have been in this situation. And those who know well about this will definitely not feel good after these experiences.
I have also faced this kind of situation several times, there was nothing to do, I had to withdraw lightly accumulated funds for long term investment. And that strategy had to be taken again later. And the feeling of it is not good at all specially for this current situation of market And in 2021, this feeling was even worse. But I think if you want to use Bitcoin in all kinds of field, then you should keep some funds aside for it.
A change from one investment to another? Nothing wrong about it, you might be just wanting to lessen the risk and promote efficiency with your 'buckets'. The market itself is just unpredictable which somehow leads to confusion towards investors' decision whether to just stand still or to move some assets to other which could generate profit as well, if not bigger, atleast faster.