I truly believe that there is always a part of us that holds the belief that we can be helped or supported. If we are truly set and firm about our feeling of helplessness, we would remain firm and refuse all help or support. I think that perhaps the positive, hopeful part of you, no matter how small or beaten down it is, responded to your T's request that you come in for a final session. I hope you go and are able to talk, allow the negative, defeated part of you talk and vent about what's going on. This appointment might actually be an opening or an opportunity, rather than a shut down and final good bye. You never know until you actually experience it. Good luck and I hope it turns out the way you want it to.