You do not really have any other option but to hold your coins, it is likely that some of them will go to zero instead of recovering but that is just part of the risks that come from bounty hunting, however there is a possibility that one or two of the coins you are holding could give you profits, how long that will take? That is not up to you to decide but the market, I have seen coins in the past not moving for two years and then out of nowhere those coins began to gain value once the community recognized the efforts of the developers and the progress they have made.