Many of us who have had anxiety have also experienced the fear of it. It is pretty human. The anxiety is a setback, and it sucks. The fear doesn't need to be -- treat it as your body and brain telling you to pace your reductions carefully. Try to self-soothe rather than be hard on yourself about the anxiety OR about the fear of it.
Sensible goal!
I fully concur with Dr. Smith's comments on this.

I did some arithmetic -- you'd need to reduce every 5 days to be off it in December. You could do 6 days a few times. It seems a reasonable schedule to start out with, but you'll have to see how it goes.

When I have to taper something, I generally start out with a reduction plan (e.g., reduce by X mg every N days). I pay attention to the way I feel and adjust the plan as I go along. With some meds, especially with long tapers, it has helped me to keep a written chart of my dosages.

Personally, I don't set deadlines. Is there a reason you need/want to be done within the December time-frame?

waves