It's all about time
Time is limited. And how to use it wisely. You can try to save time, or use the time for things that matter.
To save time or not waste time, you have to know what not to do. Write out things that you don't do. And feel good about not doing it.
To use the time for things that matter, you have to know what matters to you. This takes some thought and may change from time to time.