One of the worse thing anyone should do in this cryptocurrency world is to panic sell, from my little experience, panic sell can make you loose your hard earned coins for lesser amount you get them or even on almost no amount. So no need to panic sell no matter what, just have a targeted price.
that's true, but sometimes it's also needed to reduce the losses that might be greater, if we are big investors who are actually people who have a lot of money then we don't need to panic even when a dump occurs but if we are traders or investors who have little capital then we need to respond when there is a decrease even when the decline is still small because if not then our capital is likely to be trapped in the coin for a long time