It now sounds to me that your daughter is too distressed/uncomfortable or anxious to be useful to you at these meetings.
Not everyone is useful so I think you have to accept this and take someone else if you can't face it alone.
Given that you knew she didn't want to come with you I think you were wrong to put her in this difficult situation. I do understand it though - I think we all know how desperate we are at points in our life and we do things we wouldn't do ordinarily.
I think you were desperate for someone to share this burden.. and she was afraid.
No winners here. Love her for who she is and get "meeting support" elsewhere.
I'm sure you care for each other and need each other. 
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