(((Rhi))) I haven't found that situation before ... but I really hope that by sharing what you wrote here with your T she is able to help you with the next steps. Maybe discussing how to tackle things rather than jumping in and tackling them could be an inbetween step on the way to dealing with the deeper issues ... let us know how it goes
sometimes with other kinds of plateaus it helps to mix things up a little and do something different before resuming the hard work of getting to where you are wanting to go ... not sure if that applies here or not but I thought of it when you mentioned hitting a plateau