I'm so sorry for everyone's losses.
I lived with my parents most of me life. I, too, am 52. My mom died in 2011. She was my best friend. She had emphysema and had pretty much given up. Then, in 2013, I was getting ready to take my dad for bloodwork, when I heard him fall. I gave him CPR until the emergency crew arrived. He had just brushed his teeth, and I had that taste in my mouth all day. I loved him so much. Less than two months after that, my dog died of the same cancer that killed my brother in 1970.
I had no one left. My awesome PDoc gave me one of his dogs.
Sometimes it seems like I miss them more now. I worry that they didn't know how much I loved them. Though we were pretty dysfunctional, my parents gave me a world that made sense.
Living with them all those years gave me a gift most never get. I got to know my parents in a way my brothers never could. I got to know them as humans, not parents, if that makes sense.
I just miss them so much.