dylasd, it's part of the abuse to make us think we're shameful and to blame. That was part of what was done to us as much as any physical violation. I understand how hard it is to talk about things like that, but it's also - ultimately - healing.
I've had to do degrading things during abuse/assault. Before telling my therapist about them, I always spend one or two sessions beforehand talking generally about feeling shame. My therapist reassures me that she won't judge me, it was what was done to me and not my fault.
We also try to find things that will help me when I talk about it. That might be me deciding to read it aloud from my journal, or taking something into the therapy session to hold, my therapist knowing she needs to give me lots of reassurance after I've told her, allowing plenty of time at the end of the session for grounding etc.
it would be a massive relief to me if it wasn't the first time she had heard someone say stuff like this.
I think this is a big concern about seeing someone who isn't a trauma specialist. It isn't only that she's heard stuff like this before, but that she has ways of working that are second nature to her, which will keep things safe and stable for both of you.
A therapist making one slip - reacting too emotionally, asking an insensitive question, making wrong assumptions about how you feel, wording something badly - can be very upsetting. It can unintentionally reinforce negative feelings you have about yourself and can take a lot to undo.
All therapists slip up at some time, they're only human. Resolving those issues is part of therapy. It ends up making the relationship stronger. . But a general therapist, even one who has some training and experience in trauma, is likely to slip up much more often than a trauma specialist. However well intentioned they are, there's a risk that they might slip up so much that it's unhelpful, even damaging.
I think it would be good to ask your therapist in detail about her knowledge and experience of trauma. I would ask what approaches she has to dissociation, keeping things safe, and working on feelings of shame. Something I asked my therapist at the beginning was how prepared
she was to hear about my trauma.
Ideally, I'd recommend finding a trauma specialist. I think it's worth changing. But if you're convinced that your current therapist is right for you to work on trauma with, I'd suggest at least making sure that she has good strategies in place and is going to be using them. I also think that needs to be an initial discussion, and not to wait to talk about it if/when something goes badly.