I would have been very self-conscious to do the therapy in a shared living space like that. So, you're not alone there.
I think you are reading the handouts to yourself in slow talk, so, first, good job.
I do feel there is a benefit to speak them out louder - at a normal voice level. And this is just my opinion. Why? 1. Most of us probably need to speak up anyway. When we do speak in situations, a lot of us probably falter and lose our voice or we speak too quietly. A lot of exercises here in the group involve voice projection. So, in a way, this is practice for us being able to speak at a more normal volume level while being relaxed. It will help down the road. 2. I wonder if saying louder to yourself makes the feeling stronger. That's my experience.
Can you consider that it's rational to speak something outloud, as if and when one studies a foreign language? Can you make a sound barrier of some kind that won't distract you but make it harder for outsiders to hear you speaking? Like some kind of instrumental music? Can you find another place on campus which allows you to do the therapy more privately? Can you use a private place to record yourself at a louder level and listen to that when you feel self conscious?
... I consulted Dr. Richards about your question. I also wanted to know if my gut feeling about speaking it out in a louder normal voice is perhaps better. His answer (as I try to summarize it best): Yes, it would be better to do your slow talk and practice out loud in a normal voice, one that we want to be able to use in the real world. Also maybe you can build up to that, so don't get down on yourself for this. Step by step in all things and no pressure. Speaking louder does tie into the feeling of it, and later this goes with the idea in the therapy of being an active "actor" in your world, asserting yourself into "the conversation" of any situation in a normal way.
On my suggestion of recording and listening to yourself, Dr. Richards had this to say: This is a good additional activity in therapy, but the act of listening by its nature is passive, whereas the act of talking... "I DESERVE....", etc., is active/assertive. And the act of saying it does connect more with the physical feeling of it.
So, you're doing a good job. Keep it up. Try to find somewhere where you can feel more comfortable to do this if it's not your dorm. And try to work it up at the pace appropriate for you there.