You're going to hate this, but I think you need to tell her all this stuff. That's the only way you're going to know. She seems like the kind of therapist who would value tactful honesty. Maybe you need a break or maybe you just need to shake things up?

Full disclosure: I made the biggest therapy breakthrough of my life when my T finally made me angry, so that's probably a big part of why I'm encouraging you to face this head on. I did take a four-month break from my T at one point, but that was because she had become a trigger for my complex PTSD and I needed to get away and turn the heat down a little with EMDR before we could attempt to dig out from that.