That sounds like a plan @outlander. And great that you can ask for help this time. Remember it's ok to show your emotions with this person and they should help you feel calmer by the time you leave. The more real you are with them the more they can get the picture and help you effectively. And it's ok to keep it in the now, even if you have to repeat that you're not ready to describe the specifics, you can still talk about the way they affect you now. I send you mighty strength to get through this my dear one.
Do you have a limited number of sessions with them? If you want to you can tell me more about the Victims of Crime process (I think you've mentioned it elsewhere). I should have been through this at one point but that's another story for another place.