I wonder if an email and in person thank you would be good. It sounded like you were saying by the time you go back next week, your mind will be on other things, if I understood your post. I would want to email right away, when I felt it, but also try to say it in session.

I started saying thank you to a t, kind of spontaneously I guess, but it felt like something new to thank someone (other than just routine politeness). Now I say it a lot. I guess I used to think people wouldn't want me to thank them, partly because they wouldn't want me to show the weakness of having needed help, or their weakness of possibly needing to be appreciated. Now all that usually just feels like a normal, positive thing to do.