I'm not sure but I don't think job situations mean mediocrity. I'd think it would be better to separate your feelings of worth from your job as much as possible.
I mean, just because your job can be mundane/mediocre doesn't mean you are.
You aren't your job, you aren't your illness, you are you. What you make of that is up to you. There are so many ways to make your life remarkable. Keep looking Good luck!