Hold is best policy at the moment according to market nature, dont be panic & dont sell your coin at 1000% down rate. You have to be courage for hold your coins for months or may be for years
but dont sell in loss.
Definitely market will recover in some period like in months or in years & you will get profit from your coins which are almost 1000% down right now.
Are you still patient if your coin asset estimates decline by 80% since January?
I have experienced tremendous panic but did not sell everything in a short time, I chose to keep moving just to trade coins that have good trends even though it's temporary, of course I do a lot of cutloss and try to analyze other altcoins
but for bitcoin, I strongly believe that this coin will soar next year and I decide to keep holding it.