What are you hoping to get from the session? IMO you would be in for a big down fall if you are looking for her to make changes in that meeting or several meetings withe your therapist. Most everyone here with parent issues, and/or attachment issues keep hoping, wishing, and trying to change mom. Then she will love me the way I need. Or I have to figure out how to change myself then she will accept me. Only, we've been trying to shape ourselves since we were in the crib and wearing diapers to get her attention. All of these years of misery and nothing has worked. Or T," I want you to be my mom." The way out for me was to accept my mom for who she is: a mom who could not and/or would not meet my needs, and cannot/will not meet my needs in the now or in the future. It was painful. What she failed to provide I had to get from somewhere else. For me it came from my therapist. And, now I provide for myself. At some point I hope to have a SO to get it, at least some of it from. When you are the repository for family truth, and you are the only one that has memories you feel like a liar. No, they have minds that allow them to not lie, but truly forget. You memories are your memories, don't let others take that away from you. Don't bear their quilt.

Again it's only my opinion. If it doesn't seem to apply to your path please ignore.

Happy journeying.