I have felt the same way. So great when I leave, not missing her, proud of myself and then I think of 50 things I wish I had said and get frustrated I have to wait.

I've learned that I can't really talk about it all. Some stuff will get processed and not need to be mentioned. I've also shut down when trying to talk about my feelings around her or needs I have. I did get up the nerve to talk about hugs and I do sometimes when I leave. she rarely initiates and I don't always either - just when I'm in the mood but it's nice to know it's an option.

Hang in there. I usually write her a letter when I have a lot to say. Sometimes I read it all the next session or I just pick a few topics.