Sure you are. Try not to be hard on yourself, or judgmental, because that will stop you as if you have pulled down a screen on your thoughts. But do keep talking with your therapist about your fears about talking.

My T would just tell me "start where you are". After my 9 months of not talking, I went in and told her that I was going to talk, even if it meant talking about making Christmas cookies ('twas the season). And that's what I did. I was really just giving myself permission to talk, and to talk about anything. I was frustrated too, and felt stupid, and felt unable, and thought I flitted about in my talking like a butterfly in a garden. (all of which I shared with my T).

It isn't unusual for one topic to lead to another. In fact, it is helpful to a therapist because they can see connections between the topics that we might not. I'm often surprised when my T will make connections, and I can see the common thread throughout the things I've been talking about.

Some sessions are more focused on something very specific, others are more general. All of them help my therapist know me better, to help me better.

Be kind to you and your thoughts. Both are wonderful and to learn about and from.