Sometimes cortisone shots can really help and other times it can cause more problems.
Your PT should be able to tell you what the goal is and kind of a timeline of steps.
As for having to change what shoes we can wear and what we can’t .. it just is what it is.
Are you doing exercises numerous times a day between going to Physical therapy appts??
If I don’t do mine for my neck at least twice a day my pain from spinal stenosis just gets worse.