Most of the altcoins are down 90% from their peak valuations in 4th QTR 2017. Only a few cryptos have fared better and these include Ripple, Stellar and Ethereum. Others like Cardano and NEO have witnessed bloodbaths.
Unfortunately, this is the truth. Many altcoins will die in several years, man. I guess, that the main task for most of us now is to realize which of the cryptocurrencies will survive.