If you are happy to sell at these times with the current price, you're free to do it and just buy back when it dips.
So you pull out a bit of profit from that sale and then you keep it while leaving the amount that you'll use again for buying back. With that manner, you'll still not gonna be left behind.
But, if you think that it's just good to hold then we are on the same page.
All the things we think are easy sometimes don't match our expectations, which is if you sell all your BTC holdings to make a profit in the near future it could be that you are making the worst decision. Because if the price falls back to the first entry level it could be that we can accumulate more BTC because it is supported by the profits we get. But if the price of BTC continues to rise then you have to wait longer, which is even worse to imagine. This means that it is better to continue holding in the long term rather than selling at a fairly small level of profit. Even though it is contrary to what was discussed, of course it is an option based on their respective positions. I think there is always quite a high level of depression that occurs in us if after we sell, the price of Bitcoin continues to rise, even reaching 10% that day. (of course that is a regret that you will remember in the next few days/or months). On the other hand, it is better to buy at dips and hold in the long term for the next 1 year. That is more realistic in all the planning you make in the investments you have made.