This is my exact sentiment here buddy, selling all at once is like saying that you are no longer interested in making money or you are saying indirectly that you will be dieing tomorrow, so their will be no point having any Bitcoin anywhere, because even Elon musk the richest man in the world now is still investing, because he is still looking to make more money, so why selling off all your investment and start afresh if he is going to start again at all.
It is foolish to sell your entire investment after the investment period ends. Because you have been investing for a long time and you have kept your holdings until your time limit ends. If you sell your holdings after that, then you will have to start investing again and you will have to wait until your time limit ends to sell your holdings. But if you do not sell your entire holdings, you can sell some amount of holdings during your need period which will be able to meet your needs. If you can keep your holdings in this way, then it will be good for you.