Sorry to hear about your struggles. Can you write down some of these thoughts and feelings and let T read them at the beginning of your session?
Or even print some of your posts from PC.
Therapy seems to get more complicated as you progress... my opinion. I'm finding it harder to open up, as all the platonic stuff is out the way, and now the really painful stuff needs to be worked on.
Try and think about one thing you really want to share with your T. Focus on it, even the emotions it provokes in you. Then, you can go into T with a focus and only one thing to work on at a time. The hardest part will be to bring up the topic you have chosen, but once you get talking, you'll find the thoughts just running. And T will guide you.
The weight that gets lifted off your shoulders will make this all worthwhile