I don't know exactly what is supposed to happen in therapy, but in my opinion, the purpose of therapy is to get help for issues that you struggle with on your own. In the long term, therapy should affect your life in a positive way. If you do an inventory of your life since beginning therapy and see no improvement or that things have gotten worse, then that would tell me that something's not working.

I agree with StopDog too that if your T brings up something that's off the mark then say something. It's totally fine to ask your T why they bring something up. Often they'll take note of something that was significant in prior sessions and will follow up. If you don't want talk about it or if the situation was resolved just tell them. Ts usually won't run sessions on casual chit chat because many clients don't need or want to spend time and money on that (especially if they have people in their life to chit chat with for free).