This I have come to accept. It's humbling. I can't control everything.
Very well said, even after doing everything right, we cannot guarantee that there will be no suffering, because they are results of our previous births or so called destiny. That's the reason, many people here choose the divine path, giving up every desire and still being super happy, because the inner peace can only be attained with divine touch and tolerating all the sufferings with pleasure. Pujya Shri Hit Premanand Govind Sharan Maharaj Ji (https://www.youtube.com/@BhajanMarg) has been my greatest inspiration - a man surviving for more than two decades even after both kidney damaged.
We have to let it go anyway, eventually. Accepting that is a path toward peace.
I'm glad you are better :)