LLT, I have this same difficulty. It is so challenging to deal with. Things really seem to be intensifying in therapy as I am really trying to push through my discomfort. Luckily for me my T has matched my in session efforts with out of session support. At this point, I know I can trust her but the blockade still there. I will say this, at times I am just as uncomfortable during the session as I was at the beginning. BUT I am now willing to think and even sometimes speak about things that I would NEVER thought possible a year ago.The distress is there but the topic intensity and depth has
Increased dramatically.

Maybe this is happening to you but you just don't realize the progress your making.