My experience was similar to what you are going now through. I did not know my alters as I do now. I was concerned with how some of the angry and rage-full ones would behave. I expressed this to my therapist. She was very understanding and willing to work at what ever pace was good for us. My therapist gave me her email address so we were all able to email her when we needed or wanted. We actually think that was the key to being able to trust her enough to start coming out in therapy. We don't email as much anymore because we get to talk in therapy. My t also suggested we draw pictures or write things on our mind and bring it to therapy. It didn't need to be about the abuse. We have actually never written about the abuse. We would write about how our day was going or if something good or bad happened during the week. This opened the window to communication with my t. We would discuss what I wrote in therapy. All of that is important. That will allow your others to trust your therapist. I didn't push my alters to talk in therapy. I just kept communicating with my therapist with what ever my alters have on their minds through email and writings. The trust followed and now many of us talk during therapy. Just start off by establishing trust and a safe place in therapy. Start off by talking about your day and over time your alters will feel safe enough to talk about what ever is on their minds. Remember everything they have to say is important no matter how simple it is. I hope this helped. Take care.