Hi Kiky,
This is so hard! I'm going through this with my voice movement therapist. I think I've posted about this before, but our relationship means so much to me. We worked together for a little over a year and a half, and only stoppedbecause of my move.
I've had such strong feelings of anger and sadness about having to leave her. And she's been amazing about being able to consistently contain and help me process what I'm feeling, and I'm so grateful to her for that. It makes me wish I could just accept that it's over and still not feel so terrible about it. She says it's ok that I have these feelings and not to pretend otherwise, which is hard for me.
What's worked for me because of how good she is at handling this stuff is to be as honest as possible with her. Just say everything that's on my mind about her, and our work together and our relationship. We're having phone sessions as a transition, (I only have two more left, ah!) and I find myself using them mostly to just say every little thing I can think of so there's nothing left unsaid. Not that I won't be able to e-mail her again, or call quickly which she said I can. And I know I'll probably come for a session or two if I visit MA sometime.
Our last session was great. We did some singing/ voicework, I cried some and we talked some and had fruit and candy. Just use the session to really make sure you say what's on your mind about it all.
Having to change therapists at the end of someone's training year is what scares me about possibly working with an intern, by the way.
Hope that helps!