You definitely are making great progress, and I'm glad you were able to face the wall despite being triggered!
The voices can seem overwhelming and scary at first, but remember, they all come from you and they all belong to some part of you, so they're not as strange as you may think. You're definitely not crazy, even though you may feel like it some days, this is just how DID is. Though everyone's DID is different, voices are extremely common, so always remember that you're not alone in what you experience/hear! Perhaps ask yourself (possibly with your therapist) why you're afraid of these voices? Is it simply the fact that they're there, or is it something about them like the tone they speak in? Maybe getting a better idea of what it is about the voices that frightens you will help you feel better about tackling this wall. On that note, I know that you're excited to figure things out (who wouldn't be?), but remember to take it slow. Don't do anything you're not ready for and listen to the warning signs- feeling triggered, uncomfortable, fear, etc. Let your therapist guide you in pushing yourself with this wall, and remember to focus on one step at a time. DID is like reading a book with very small print and many chapters; you get so excited to figure things out yet you don't want to just skip to the end. You just gotta read each word and get through the book page by page.
I hope that you continue to do well in therapy and congratulate you on this step forward!