I agree with the others. It takes time to develop trust. Trusting someone after your first meeting isn't any more healthy than not trusting anyone ever. Trust is a balance. It is sharing little bits of information and making sure that is okay before trusting with more information. Your T will know this. She will not be upset with what you were willing/able to share. I remember in another post about this session you said that she was able to give you some good advice about how to deal with things at work. Talking about work was not a bad thing. It was talking about something you were able to connect to. You got good work done about that. Not every session has to be about trauma or the really hard stuff. Especially at the beginning.