Who are holding the coins with a ray of hope. It is not going to end good guys. Sell what you have, atleast you can get something out of it. If you are in the last batch who are left with the coins, you will not even get a condom with it.
I'm sure you are trolling. Sure, some coins are already dead and should be sold, however, not because the market is dipping doesn't mean it's over. We are currently in a bearish-market so it's normal for prices to go down. Even major cryptocurrencies went down to more than 50% of their recent value.
I think he needs to take a break for a while so he can refresh his mind to prevent thinking about the crypto in his day. And if you can see that you can make a profit, then it is better to sell your coin before it gets down again. We don't know when the price will go up or down, but we can prepare to get ready for any situations so we can think what we need to do later. I still hold some coins so far, and I don't think that it will go to the end because I am sure that there will be a time for cryptocurrency to get a rise again.