Oh, this is heart breaking. I am so sorry for your loss. After loosing a child unexpectedly who was 19 years old I can empathize with you. I found that talking about him kept him alive until I could ease into the reality that he was really gone. He's been gone 35 years and I think about him every day. It does get better as you gradually accept that she is gone. You will always have precious memories of her. Be good to yourself. Holding you and your family in my prayers.