The more you isolate yourself the harder it will be to leave the apartment.

I wear sunglasses all the time in the day, helps with the anxiety. I can't deal with lineups, so I try and shop the 24hour places later at night when there aren't many people around.

Also, early morning is another good time. You can shop, do your walk, etc, while the rest of the world is still asleep or on their way to work. I find the early AM crowd less threatening and more friendly.

These are just my coping strategies, and I am hoping to eliminate the need for them.