What do you think will be the bottom for Bitcoin, from which it will begin to recover? Another question is whether now is the best time to invest or whether waiting for more dump is advisable.
Waiting for more dump in never advisable, but never waiting for another dump is foolish as well, the best way to stop this problem is find something in between which is averaging or dollar cost averaging, just keep on buying a certain percentage whenever the price falls a bit therefore you are accumulating and at the same time keeping a small backup to buy if the price drops even further. No one can really predict what the final bottom will be so this is the best strategy.