Just thinking out loud here. How long do you think it will be before Melodyne or some new software will be able to handle the greater pitch changes without sounding off?
I lost family members Ken and one of the hardest things for me to do was attend a support group for Grief, Loss, and Bereavement.
It was one of the best things I did. You don't have to do it right away but please know there are others that are going through what you are now and willing to listen, help you. Here is a link when you are up to it.
https://www.verywellhealth.com/grief-loss-bereavement-support-groups-1132533