The route of most financial misery is not bad decisions, it tends to be good decisions that you try to make happen faster than they should. Most people underestimate how much time is actually needed to put the odds of success in your favor. People are so turned off by a simple investing strategy that might work because it seems too boring to them. The goal of investing is not to minimize boredom, It is to maximize returns.
There are only a handful of financial rules, ideas, and observations that really move the needle -- and explain the majority of what you need to know to do better with your money.
I could have narrowed this down to 10, but I had fun with this thought experiment, so here are my top 30 rules of the money game.