You have had lots of great advice, Janet. It can be tough to do a clean out, especially when you actually love or at least like most items in your closet -- which I think is true for you, because you have chosen well. Also, some of your items were chosen with your beloved DH and so you have happy associations tied to them even if you are no longer wearing them.
Also, it may be less that the items are no longer "you" than that you have trouble making outfits that you like for who you are now with them and whatever else you have in the closet. If the item itself, when looked at on its own, still pleases, that makes editing harder.
I felt like that about a number of things that I let go this spring. There were sunk costs (so guilt -- even though most got reasonable wear in their time). I still *liked* them -- in theory. But applying Joyce's test, I wasn't enjoying wearing them any more. So -- out they went. I have edited out 41 items this year so far. A few are in a holding zone and might earn a place again in the fall -- but it's kind of doubtful. Meanwhile, I've purchased almost as many new items and I am wearing those quite happily.
So my next point it -- my last BIG edit/ shift was actually when I joined YLF, and then I had several years of wardrobe building, so the working closet really came together in about 2014 or thereabouts. Of course I made many purchases and edits in the intervening years -- but the overall feel of what I was doing remained constant.
I think this is the year of needing to make a bigger shift in my style. I have not completed that shift and what I am wearing may look entirely similar to an outsider. But I am thinking about it in a slightly different way and do feel I'm moving into a slightly different place sartorially speaking. This makes sense considering I am a decade older.
If you consider the timing of your last big shift -- maybe this is *your* time now, as well.