Oh Gemini, I am sorry this is so hard.

It sounds just awful. I am glad you have here to come to also. We are all here supporting you as we can electronically.
But wow! You made it through today, you went and you made it through. You are very brave, and this means you can make it through the next session and the next. My hope for you is that they become more and more manageable as you go along, and with all the grounding and breathing work you are doing hopefully this will help that.
Also......your therapist is back soon right? I bet that will be a huge help with managing the emotional stuff?
Kind supportive