Hello coronalight: I'm not the best member, here on PC, to be replying to your post. But I noticed this is your first post so I thought I would at least welcome you to Psych Central.
My personal thinking, with regard to what you wrote, is that the best you may be able to do is to make sure your daughter knows you're available to talk if-&-when she decides she wants to. Anything beyond that may be viewed, by her, as being nosy & intrusive. Perhaps other PC members will have more insightful suggestions. I hope you find PC to be of benefit.