Improve the speed between knowing better and doing better.

There is usually a long delay between knowing something would help and acting on it, and that delay is where most of the loss occurs. The knowledge was never the bottleneck. The gap between recognition and action is the actual variable, and it is one you can shorten deliberately.

When you next notice a clear improvement you should make, do something about it within twenty-four hours, even something token. Shortening the gap matters more than the size of the first step.