This makes a lot of sense to me. If I noticed I was doing that I would MAKE myself get a few nice things. And then I would make myself give them away when I started getting attached. It seems like a lot of anxiety but if you work your way through something like that you will train yourself to handle loss of items better. Don't do that to truely special things (the last item of a friend who's gone, journals, family jewlry you care for, ext) but if you but plates, maybe a year from now replace them. Work on having nice stuff but not the centimental value to everything.

Because of what you went through (a trauma) you seem to be overly-centimental of items. For instants, someone who has never lost everything will not understand why 15$ glasses you just bought are very important to you. But I get that, and your reaction to this is quite normal. That being said you should work to fix it.

Also my suggestion is merely what I would do. If your seriously going to get help go to a professional because what would work for me may trigger you or turn it into hoarding which is just as bad.