There are many things I enjoy about the stock market, and one of them is the fact that the slate is wiped clean at the start of every year. In a way, it’s like a sport-there’s a big scoreboard that, at the end of the day, is how we measure our performance. Once the game is over, it’s on to the next one. There’s no carryover effect. In other words, it doesn’t matter how you did last year in the stock market-whether you made 50% or lost 10%, that performance really has no bearing on how you’ll do in...