I think everyone has anxiety when they have to start a new job with unfamiliar people. I agree with hry33, keep your Xanax with you and take some if you get into an uncomfortable situation, until you get used to it.
As for jobs with little human contact...that's a tough one. Maybe some type of data entry, or working with animals, or piece work at home. I wish I knew some ideas too. I've been a stay-at-home mom for nine years, so I'm a little out of the loop. Hope you get some good suggestions.