I feel this way all the time. My friends will invite me to go someplace and most of the time I get into a complete panic thinking about how I won't fit in or how my act will slip and they'll see the real me and end up talking myself out of it. Then I'll stay home and feel isolated and lonely and wonder why none of my friends are there for me. But, instead of picking up the phone and calling them, I'll tell myself that it's not right to bother them with my junk and that it's not fair of me to expect them to put up with me when I can barely put up with myself. Which makes me feel even more isolated and lonely.

Lather, rinse, repeat...