I was where you are in 2013 when I had to solely make that decision for my mother. I climbed into the hospice bed with her and told her to go be with Grandma, I'd be ok. A few days after she passed I was awoken by what I thought was smoke at the foot of my bed. But a picture started to form in it and I instinctively knew to pay attention and memorize it. And there was my mom and my grandma, their arms around each other and waving at me. Between their heads was a giant pink flower. I spent 30 minutes online looking at pics before I figured out it was a pink peony. When I told Mom's best friend about the vision she said the pink peony was my mom's favorite flower. I didn't know that. Your dad is free in glory but you'll see him again and he'll be watching you. Bless you fren.