This sounds such a hard thing to be going through. But glad you have had a conversation with T. I find therapy really hard and have all sorts of avoidant tactics. Then oneday I decided that I wanted to move on and started to set myself targets. Like if I didn't start to talk about one of the hard things in 4 weeks then I would call it a day. It did help me. So for me targets were really useful at the stuck points. I am sure I would be scared if this suggestion had come from T though.