You are on an appropriate dose of prednisone. It is best to wean off slowly
in smaller increments over a period of months. This will be guided by how you are feeling with instructions from your doctor. Side effects are manageable if you keep monitoring your blood pressure and metabolic tests at their office.
It sounds like you are responding if you are anxious to lower your dose.
It is better to go down gradually to avoid having to bump up higher again.