When will I "get over it?"

I still cry a lot. I'm getting a little concerned about it because I can't keep crying over my dad's death. I have sort of gotten over my mom's death...to a greater degree but I just miss them both so much. The thing is with my dad that makes me so upset is that I just didn't know he'd stop communicating with us after they started giving him the heavy doses of morphine. I just had too much I needed to say, too many questions I wanted him to answer. And then he was so out of it. You could see he wanted to say something but he just couldn't get the words out. The people at hospice said he could hear us but he couldn't respond. And there's just too much I needed to know.