In December I personally changed my altcoins for Bitcoins. Now I know that the best solution was to sell everything then. So there is nothing to do, only wait when prices is going to rise.
I think some crypto coin in the future will be world’s most important currency and will replace national currencies in many countries. The pace of globalization continues to increase it means no national sovereignty in the future.
IMHO good choice is Monero. They made hardfork to avoid ASIC influence. Transactions are private and price is stable. Good choice for crypto investment.