What is at the root of your anxiety? Is it lack of self-confidence? My father, whose advice is always good (and for that reason, is obnoxious) said, "Don't ever anticipate what others think of you." I have always tried to remember this when anxiety arises around what others are seeing in me. Eventually I just learned to do my own thing, let the cards fall where they may...

Maybe this is not it at all with you...can you be more specific?. You're obviously bright, self-aware, what do you think you're lacking?