I'm also someone who often e-mails my T after a session, if I have other thoughts on the way home, or if there's something I couldn't bring up. One thing you could do, if you don't want to send your T a long e-mail, is just send her something like, "There was some stuff I wanted to talk about today, but I had trouble doing it. Hopefully we can discuss it next session."

Also, I think you'd said last time that your T asked you some questions and basically led the appointment. Did she not do that this time? If not, then let her know that it helps you when she leads.