I think I hear that something seems to have changed with the T. She used to feel very supportive and wise about when and how much to push you, but this time it felt very UNsupportive. You've been able to work out steps that push you towards dealing with the OCD, but this time she didn't pay attention to your steps and pushed you to do more. And with finals and a meet, now did not seem to you a good time to push your limits. And you felt angry and judgmental. You still respect her judgments, but you also wanted to be listened to, and you really want her to admit she made a mistake, and it seems like that would make the hurt go away.
I hear that you are feeling scared (I guess a panic attack would be scared!) and hear that you are very very angry. Confused about what to do and yearning to be able to fix things and not feel disconnected.
It sounds like you would like more safety & choice in your connection to her.
Is it like that? Is there more?