Cryptoes

Maybe this isn't the forum to be writing this on, but I am in a quandary about Crypto Currencies. Possibly I'm a dumbass,
but I really don't have a clue whether I should buy cryptoes or not; also which ones to buy.
If there is anybody out there in STEEMIT LAND that can help, it would be much appreciated.
I'm not too computer savvy either, so I really would not know how to go about buying cryptoes. Maybe my age has something to do with this, as I am 75, and my mind isn't as nimble as it used to be.
Any help would be apprreciated on the cryptoes,

                                                       thanks