Hello, i am very new to cryptocurrencies trading , i started the trade on Poloneix platform . i had 3 bitcoins changed them to Zcash which left me with big losses as the price of the zcach fall dramatically. then i switched to trade Navcoin , again this coin lost its value next day as i bought it .Now i have 30000 NAV coins . i cant even sell them . i am not sure that this coin can revitalize or even regain its value . How can assure me that i am not right and there is a chance for this coin to be worthy . please advise . many thanks in advance