One of the main points I took from it is that a failure to acknowledge your limits can actually undermine what you’re trying to achieve. For example, deferring the things that truly matter to you (personal projects, time with family) until you’ve got a hold of your endless todo list will lead to a life perpetually yearning for a fantasy future where everything is somehow under control.
Similarly (my example), fixate on finding a romantic partner to the point where you make yourself miserable until you succeed and you may find your despair makes it harder to connect with new people.
The key message for me is that this day today is your life. Work hard towards your goals but remember to enjoy that journey.