Even if you own a huge portfolio of Bitcoin doesn't mean you should sell some parts of your Bitcoin because you saw some good profit on it, actually before going into investment there should be a stage or amount were you should draw a line to meet up so that no matter the amount of Bitcoin you have accumulated you will not consider yourself to be sufficient since your goal has not been met even if you are seeing a lot of profits already from the ones you accumulated, actually this kind of goal will certainly be of help to an investor so that you will not regard the little amount of Bitcoin you have accumulated to be huge amount of Bitcoin whereas you will be having a thought of selling some parts because this has been the mindset most people normally have towards there Bitcoin.

this reminds me of someone I met, from discussion we started talking about our Bitcoin investment which he told me he had already accumulated Bitcoin worth $20k that he is planning to sell some parts since he has gotten a huge portfolio, so I told him his portfolio is still very small to be talking about selling now, so instead I told him he should give himself a target to acquire a certain number of Bitcoin so that his mindset of selling now will completely change, so actually nobody is against anybody on what they intend for there investment but the  only advice is that don't sell because you see yourself as someone who has some quantity of Bitcoin but if you must sell, accumulate to have a sufficient quantity of Bitcoin before given a thought on that direction.