That Which Gets Measured Gets Managed.
Mental Performance - Do you even track when you feel, how you feel and why? - It's the start of really big and positive change opportunities.
Nutrition - I know it sucks, but if you have no idea what your eating for Macros and Calories, don't have any expectations except disappointment and failure.
Fitness - Tracking every workout or activity; the feedback for progress is a catalyst for the motivation to stay disciplined.
What have you been doing for these lately? Chime in, we want to know :-)