I don't think you have to defend your T because I have nothing against her but I just don't understand how can you learn to make a difference between a want and a need internally for yourself when the definition basically comes from her. To me it feels like an impossible catch - in order to keep a relationship with her that you need you have to accept her definitions of wants and needs for you. I think this is very well exemplified by your fear that if you tell her that you did fine then she will immediately increase the time between sessions.

I think a certain freedom is necessary to explore how things really are for you. When someone imposes restrict conditions so that you have no other choices than to accept them or give up completely then to my mind there just isn't enough space, if you like, to freely explore how things are for you.

I'm not saying all this to attack your T but rather to think about and discuss these issues.