I believe that people have more alters then they think because it seems that some get so buried because the trauma was so bad that they don't want to emerge or as in my case of a poly-fragmented mind.
I've never had therapy so I don't feel like I'm qualified to say anything about that.
I have epiphanies too, like tapping into a universal truth that I was too blind to see the obvious, or duh moments.
I hope it goes well with you.