She may have tried to just get an idea of what's going on with you. She may read the questionnaire and go from there next time. That's what hapoened when I met my T, and it wasn't my first time in therapy. Its always somewhat awkward to me, seeing a person youve never met and not really knowing what to say. I told her many "I don't knows" at that time, and it took us 2 sessions to really slowly start a relationship where more was possible.
So, what I'm trying to say is, it may take time.

Or, its possible you just don't click with her.

I understand that my T doesnt kniw what to do with me if all I say is IDK, and this still happens sometimes, even tho qe get along great. I niw try to write some things down I want to talk about during session because I know if the going gets rough, I do tend to blank and jot know what to talk about.

What are your hopes or expectations for therapy?