What to do now is just hold your assets because to liquidate now is a sure loss.  It is too late now to sell,  the price is so down,  you should have sold the  first month  the market dropped, that time you might have cut your losses.   Considered this experience of bear market,  as a "lesson learned".   For now, just hold, and think positively.  Cryptocurrency is here and it will stay, for good.