Granite, it seems perfectly reasonable to me that you feel like you can't make sense of it. When I was dealing with all of this horribleness, I was in grad school. I just barely got by: it felt like my brain just wouldn't work. Unfortunately, I had to stay enrolled in order to keep getting therapy that I could afford. So it was a juggling act to get through the easiest ways I could, and I still failed a couple of classes that would have been difficult on a good day.
A friend of mine lost her college aged daughter to a drunk driver. She was writing her MA thesis at the time. For 2 years after, she couldn't write. She just couldn't put words together in a way that made any sense.
I think the stress of processing everything you're struggling with just takes up all the space and effort. It is what it is. It's ok.
But I would try to tell your T that while you feel soothed by her reading to you, you're feeling overwhelmed by the content.