For me, I'm terrified of what I am without all of this stuff I'm dealing with. I feel like I need to hold on to those parts of me for dear life because they're being threatened by therapy. They'll no longer be needed if I'm too successful in therapy.

It's fear of the unknown and fear of the inevitability of eventually "losing my therapist" when he is such a solid reliable source of support.

I can really understand where you're coming from.