The HODL and sell later ideology is a good one and sometimes can be profitable due to the high risk high return nature of the cryprocurrency ecosystem, by sometimes it may be dangerous to hODl because the price can just come crashing down. It's always best to know what the project is all about before HODLIng.
Monitoring the market ups and downs, I have come to a very simple decision. I will not sell any of my altcoins or Bitcoins as it will be a loss of money. Yes, I am ready to wait to be in plus after.