The most important commodity is your time. You can make more money, but you can not make more time. It is finite. Use it wisely.
When you’re young, you have lots of time and not a lot of time. When you’re old, it’s the reverse. I don’t know if a single old person who wouldn’t trade their money for more time.
The older you get; the more valuable time becomes and you should treat it as such. Protect your time