Sleep
Sleep.
A good night's rest makes everything better.
If you have a job interview coming up, sleep. It will help you be your best self.
If you're learning a new language—whether for speaking with humans or with computers—sleep. It will help you remember what you learned.
If you play sports, sleep. You'll recover more quickly and master new motor skills faster.
If a partner of many years just broke up with you, sleep. Getting a good night's sleep takes the edge off of painful memories.
If you're an artist, sleep. A rested brain is more creative.
If your discipline is lacking, sleep. The better your sleep, the better your impulse control.
Finally, if you feel tired: sleep. You'll simply feel better.
Yours,
— Peter
P.S. The number one way to sleep better is to make your sleep hours more regular.