Whoever called it the "theraputic hour" was never a client?

I can totally relate, I always seem to come out of therapy sessions thinking about the things I should have said.

Making a small list of the priority things to talk about is definately a good idea.

Have you tried keeping a journal of your feelings or things that you have running about in your head? That has worked for me too as then after offloading on paper I get to the most important things in therapy. Also it may be an idea to have a more structured therapy or counselling that is not simply an offloading session. It has made me feel like I'm trying to progress rather than just talking things out. Very individual decisions to make though. As you like your counsellor ask what types of techniques or approaches they will work in which may help you to understand your issues and formulate your solutions easier. Unstructured counselling can go on for life as we're always adding new experinces everyday, just be wary of that. If you are able to identify specific issues then maybe you can't structure it yourself that way.

Good luck with it. Opening up to your innermost thoughts and feelings for an hour and then packing them all up again inside when your time is up is very hard, sometimes I feel like the world is a bit surreal when I come out. Be grateful though that you do have a counsellor you trust, that is a hard thing to come by sometimes for people. Take care.

You could try making a list and highlighting the most important topics to you. Show it to your counselor at the start of the session so he/she will help you focus on those particular topics.