Stopping or stalling development in the second or third tanner stage isn't uncommon. There's woefully little study of how different medication combinations affect our bodies, but Powers suggests progesterone (p2) when attempting to continue breast development if you've stalled. But you're doing that.
It may make sense to ramp up estrogen to a method with more bioavailability. I don't know what the bioavailability of patches is, but I know that sublingual is more effective than oral, and that intramuscular estradiol valerate has the highest bioavailability. I jumped straight to injections, but I'd probably ramp up from a lower dose and availability if i were starting again, to mimic typical puberty.
We have informed consent in Massachusetts, so we have a lot of options if you find a cooperative doctor.
I also use bicalutamide to reduce testosterone rather than more common AAs, because it isn't a diuretic.
Obviously you'd have to talk to your doctor, but that's some of what I gathered in the course of my own transition.