The biggest mistake anyone can do is still holding unto their altcoins when bitcoin touched 60k weeks ago and still holding strong when the fall began weeks ago, imagine someone still holding HEX token when the coin did 40x already? If you are someone like this friend I don't know what your aim is but sorry to say you are doing it wrong. Check yourself cos it's possible you are struggling with greed.
Have you done research and analysis on the coin? if it is a coin that has a good future and has the potential to have a high value then in my opinion it is better for you to just hold on even for a very long time. the most important thing in cases like this we have to do research and analysis in order to find out the follow-up that is owned by a digital currency in question.