So I started my new job last week, and realized I've "forgotten" how to be with people (wasn't working for about a month and a half before). I don't know which character suit to put on and I'm an anxious mess. So today my coworkers forgot about me and went on to lunch, and then I ran into them outside and one of them was apologetic and said they forgot about me because my desk was a little far. I pretended it was okay and lunch was a drag, everyone was talking amongst themselves about topics that I'm not involved in/don't understand. I feel like a wreck, and that everyone thinks I'm lame or something. I don't fit in at all, and I can no longer tap into my "fake it till i make it" fake personality. I'm just an empty shell and I bet they are going to see right through me. I can't lose this job either, or I won't have any income. How do I live everyday without hating myself and the rejection from everyone?

How do you guys deal with starting at a new workplace?