It's good that you were able to acknowledge what dissociation you were experiencing, and it was good that you were able to ask for help! It's not easy, and it gets scary sometimes, but it may mean that you have a part who is willing to share some things in therapy and acknowledge how that part is protecting and helping you, too. It takes time for the parts to get to know you, and for you to know your parts. Hopefully your T helps you to feel less anxious and scared about the dissociation, and hopefully your T helps you and your alters to get to know one another when you all feel safe to do so.