You should trade on the p2p exchanges. The 100 biggest coins are shredded (coinmarketcap.com) , but the unlisted/new coins are prospering
There's no trading on those p2p exchanges, only some boring buy/ sell stuff.
You should buy a cheap one in a finnish lake, and put up a tent with a sauna. Add alot of vitto and beer and live the happy crypto life.. 
I know, problem is that they are not cheap. And if I find one they don't take crypto. Well some of them do but it takes ages to transactions to confirm...
What would you bring to a deserted island? Loads of crypto?
edit: BTW, where have all those Nvidia Russian masternode shitcoins gone? They promised there is always something to mine?