Welcome to the forum. The loss of a loved one as dear as your father is surely something very hard to take. Hope with the passage of time, your grief for his passing will ease off. Our deceased loved ones don't want their passing to be such a burden to our lives as to hurt us. I understand the deep grief as I have lost my only son at 5 years old tragically. Tinnitus is often tough at the beginning but over time the body can harden to the alien sensation and slowly if surely it will get easier. All the best to you. God bless.