Have you ever thought about going somewhere and you weren’t sure if you should go there or not? Or if someone asks you a favor, you mostly reply with
Yes
And because of that you feel like you have never time for the important things in your life?
One method to decide if you should spend your time for this or that is using your own “HELL YEAH!”
Another way to make your decision easier is to set an aspirational hourly rate:
Value your time at an hourly rate and ruthlessly spend to save time at that rate. You will never be worth more than you think you’re worth. - @naval
The moment you set an hourly rate for your time, you can use that for the next decision to ask yourself:
Do I really want to spend X?
Where X can be $100 / min, $1000 / hour, $2000 / hour, $6000 / hour, …
At which hourly rate would you value your time?