If you don't believe me, believe a sophisticated investor like Karl Denninger:
No, the test is whether you keep your money in a Bear market. Note that I didn't say "make money". I said keep your money.
If you have the same amount of money now in your investment accounts as you did at SPX 1576 in October, you are doing better than 90% of all institutional money managers and 95% of all individual investors. This puts you in the top 5% - and that's just by going to cash in October and sitting on your hands.
If you've actually made money since then, you're in the top 1%.