My therapist did have a helpful thought which
I use on myself sometimes - she asked me if I thought most prople attached so much meaning to objects .

There is an interesting book - I think titled something like " Boarder Hoarders" . About just that - people have hoading like behaviors but not the whole issue, and those who find themselves having to weed through way more stuff , usually because of deaths or divorces , than they can possibly handle. I ended up with the contents of 3 different BIG house in my 1500 sq feet last year . i already had packrat tendencies, and had a lot of trouble letting go if things that belonged to family members, art or building supplies. The last was learned from my parents, who went through the depression - lots of factors.

Get help!! Don't be embarrassed ! So hard to actually do, I know.