In my opinion, it comes back to each individual, you can hold as long as you want, but if you feel that you have enough profit now, if you want to leave, you are also welcome.
In my opinion, you can take part of the profit, and part of the hold, so you can get both, I think that's better.
Before deciding to hold it or sell it at least we need to know the prospects of the coins we have,
and that's why I think it's important to do some research before buying a coin,
What's clear is that again, it all depends on each person's decision