If it's causing this strong a reaction, it really isn't so simple. It's not just a matter of getting over yourself.

It may be that the work right now lies in getting to the heart of your strong reaction to the idea.
It may be that you need some groundwork before you're ready.
It may be that this just isn't the right kind of work for you.

It sounds like the idea of BODYWORK is really huge and overwhelming, this big shapeless unpredictable idea that your therapist wants to put you through. I wonder if it might be helpful for your therapist to back the bus waaaaay up and to partner with you to choose one thing. One small thing to try, as an experiment, and there's no right or wrong way to do it, and only if you are willing and not overwhelmed by the idea.

Hugs. One of the very most empowering things one can do is set healthy boundaries, even (especially) with your therapist. Being able to voice whatever your boundary might be about doing bodywork right now could be a good start. And discussion, with an expectation that you are a partner in your own care, about what that boundary looks like: no bodywork? start small? you drive the bodywork bus and get to decide yes-no-not today-let's try?