On the first night I was scheduled to teach at a jail, a conscience decision was made to ensure that I had a positive attitude; didn't prejudge the environment, and focused on my purpose instead of the location that I would teach. My first experiences at the jail were a little overwhelming; the sights and sounds were different but not surprising.
I have heard the nagging voice before, and I have experienced every option listed. I can tell you the biggest difference in shifting from ignoring to letting go is simply choosing. Only you are responsible for your happiness, no one else. Once I figured that out for myself, it was absolutely liberating and empowering.