Well you are not alone my dear. I too have always had an tendency to keep things that carry fond memories, that I like or that I may some day have a use for. I also have huge anxiety issues with all of the waste in the world and have a really hard time throwing things away.
I really appreciate reading about your ambitious downsizing. I am trying to do that as well. There is nothing that makes me happier than finding happy homes for the stuff that I'm ready to part with.
Unfortunately I am a hunter gatherer treasure finder at heart and it's a constant effort to battle those urges.
My craft hoard is my next mountain to climb and will be thinking of your accomplishments when I take it on.
Thanks so much for the positive good advice post.