I was diagnosed with PMR in early 2020 and ceased Prednisone entirely at the end of January 2021. My advice is be patient and stick with the taper exactly as recommended. Many people here have had PMR much longer than us and it’s a very tricky condition so we can’t afford to get complacent.
I have realised that PMR changes your body and in my case I had cognitive issues but with exercise a good diet and supplements if you need them you can get yourself back in time - but it’s a new normal. Reduce stress wherever you can. Good luck!