Hi, welcome to the club!
I am about 6 years out. Here is what I did.
I also had to divest myself more or less of the horses. My guy ended up retired in another state where I pay almost nothing and have eyes on the ground to see that he is fat and happy. There was no way to afford board in my area and my kids come first.
I went through all of my stuff and kept “the nicest” tack, blankets, crops, outfits, etc. I also kept my saddle. It was expensive and I knew there is no way I was ever going to have the spare change to buy another of the same quality again. Some of the items I washed and put in a big duffle bag where the stuff still sits all these years later.
However, after a hiatus of 3-4 years I started riding again and was thrilled to have my boots, britches and other riding gear. I finally bought myself a new helmet because mine was so old and I realized it was stupid to keep riding in it.
Don’t throw too much out. Yes, I am cramped for space but it didn’t really take up too much room. It is amazing how much stuff you can cram under your bed.
I will also echo other posters that I am much happier now.
My kids are ok too, really just fine, despite bumps along the way.
Good luck.