I understand that feeling!! I only see my T for half an hour every two weeks. It feels like I don't get a chance to really talk about anything. I feel like I can't make any progress like that, and I've told my T that (and other Ts I've had before), but they can't offer me more time because of the volume of people who need help.
Sometimes I cancel my appointments with my T just because I feel like it's not doing me much good and that I'm only wasting my time. Ts I have had said when I cancel appointments, it shows I'm not willing to try much - that I'm not putting forth much effort. When they say that, I feel angry and usually wait a few months to reschedule for an appointment.
I end up in this cycle where my Ts don't respect me for cancelling and I don't respect them for not understanding why I feel the way I do.