My 2 cents on this would be to only invest what you are comfortable losing, and to play the "long" game.  So if you are interested in BTC , Ethereum and Steem, invest a bit in each, but don't try to become a day-trader constantly buying and selling.  Just buy and hold for the most part.  It is so much easier, safer, and lower stress (and is how Warren Buffet got to where he is - *mostly*)