When you tolerate an error, you rob yourself of learning. When you ruminate on an error, you rob yourself of happiness. Notice it, improve it, and … - James Clear

Relax. Your rumination, analysis, worry, and need to control the future are robbing you of the current moment. Yes, there is a time for preparation, but continually thinking of the future guarantees you'll never enjoy the present.

Focus is how you knit the hours of the day together. With focus, the day becomes a beautiful tapestry. Without focus, you end up holding a bundle of loose string.

What is the real goal?

The real goal is not to "beat the market." The goal is to build wealth.

The real goal is not to read more books. The goal is to understand what you read.

Don't let a proxy become the target. Don't optimize for the wrong outcome.