At the end of the year I ask myself the same question. Did I beat the S&P 500? As long as the answer is "yes", I'm going to keep plugging away. I may change strategies. When the answer becomes "no", I'm going to put everything into a combination of preferred stocks and an S&P 500 ETF and pretty much forget about putting a large effort into "investing". At some point, due to age, I'll start shifting into a larger percentage of income producing investments. I'm 60 and have about 10% of my holdings in investments focused on income production [Bonds and preferreds]
If you are reading this to find out who I am because something I just said pissed you off, let me take this opportunity to apologize.
If you are reading this for any other reason, surely you must have something better to do. If that sounds rude, see above.