I think it makes sense that a lot of the hoarding tends to start after a traumatic event or "perceived loss..." I think I started "rescuing" old and abandoned stuffed animals in earnest after my mom moved out of state because of my stepfather's work....it just made me sad to see sweet, adorable stuffed animals who had never done anything to hurt anyone that had just been "left behind," the way I felt I had. It was also around that time I started overeating/emotional eating, too. I got to see my mom on holiday breaks and some weekends, but that didn't really make the feeling of loss completely disappear. I still feel it every now and then, even as an adult, but it doesn't feel as bad now.
Complicating things is the fact that my stepmother doesn't seem to understand why I can't "drop my mother's hand" and want to go visit her at every opportunity I have, because "she was the one who left." If she's going to be so insensitive about the matter, I'd rather she not bring up the topic of my mother at all.
I mean, my mom made some pretty big mistakes with me during my childhood, but at least now she's gotten to a point where she can accept me for who I am, and my stepmother still can't, for whatever reason.
I don't think I'm THAT bad of a person.
However, I now do a periodic cleanout of my room where I set aside bunches of stuffed animals to give to a drop box belonging to a children's hospital/charity, so that the animals can go to children in the hospital, ones who have suffered accidents or trauma, etc. 
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I wish Sterling Holloway narrated my life.
"IT'S NOT FAIR!" "Life isn't fair, Calvin." "I know, but why isn't it ever unfair in MY favor?" ~ from Calvin and Hobbes