Is this viable as a long term investment strategy?

I have been doing 10 dollars a day in VOO 2 in QQQ and 3 in ethereum for the past 4 months and I'm also doing 45 every two weeks in employee stock for walmart that I get a 15% match. What I'm asking is if I should continue investing like this or diversity more I'm probably going to cash out in 5 years or so for a down payment on a house hopefully I will have enough. via /r/stocks https://ift.tt/xip4B6f