I hope it was a good read for you. I'd like to think it was heavily checked out, on reserve, or something like that. Ever life changing... ...all the best.
Thanks for reading this. I agree with his first sentiments of the appropriate time for the present and future, which is a mature view. Later when he over prioritizes the present I don't appreciate it. But the deeper problem is what we call worrying of the past or future is simply unbridled parts of our subconscious that cannot be deleted from existence by living in the present, and therefore work to integrate them must be undertaken or there will never ever be any peace. Knowledge of how to do that is available from ancient and modern practices. And so to answer his question is not to make statements about how to deal with how we are ... but to complete how we are through particular practices. Simply sitting and making statements about how we aportion our time is lazy and will not work. You will be saying exactly the same non-working thing the day you die unless your whole approach changes. And I dare say this applies for the entire society that likes to make pronouncements about how things should be or could be or how we are to understand them ... whilst it fails to deal with even one underlying cause.
"Everyone that has suffered through his share of troubles knows that, if one wave of woes comes crashing in, the human heart delights in giving way to absolute despair: but let a guardian god once grant smooth sailing and that same heart will just as soon assume the lucky breeze will always swell its sail" Aeschylus Persians
reconcile with your estranged brother, father, etc. UNLESS they are toxic, gaslighting, taking part of covert or overt abuse of you or someone you value and don't forgive it that's the case. Move on and never look back.