-Take an acting class. Or an improv class, if that's easier to find. But acting classes address anxiety more effectively I think.
-Read "Impro" by Keith Johnstone
I've had social anxiety since adolescence and eventually learned how to pretend to be functional socially. It involved a lot of observing of others for whom this came naturally and forcing myself into social situations where I could practice. Eventually you find that the people you interact with can make all the difference between this being 'work' vs 'fun'. Then you seek out the latter as much as possible to form your social network.
the variation on this is groundhog day. So, you killed yourself and magically were transported back to your body the moment before dying. no one knew, only you. you are free, absolutely free from any sort of obligation to humanity or to live a certain way. basically, you get a true do over, but you are starting where you are. you can do anything. What are you going to do?
the reality is, every day is a do-over. There are no rules in life. everything about life comes from the inside out. things interact, but all those interactions are choices and coincidences that add up to what? No one, and I mean no person ever really knows what's going on, because all the action is happening down at the level of molecules. magically, your ideas can cause your molecules to do things.
there are no "rules" in the universe. there are just atoms and molecules interacting according to how they interact. It may look like there are some rules, but that's people just telling stories to describe what they think they see molecules doing. but it's all just stories. The secret is your ideas affect your molecules. how you connect and think about your ideas affects what your molecules do. that is real magic. ideas and "feelings" have nothing to do with molecules, with the molecules in our cells, in your brain, in the toe of the President. Molecules do what molecules do: atoms interacting with other atoms via their electron shells. yet somehow our ideas can make molecules do things. it's truly weird, wonderful, and amoral.
I would ask you to do 2 things before you shift your molecule dissolution date forward. 1) Practice meditation. simple attentive breathing, or using a mantra like "rom" for 20 minutes where you keep bringing your attention back to your breath, or to repeating the mantra. It is difficult to do and takes practice. As you get distracted from your breath or repeating the word, gently let go of those distracting thoughts and return your attention back to your breath or to the word. Try it for 2 weeks, everyday... it can't hurt you or anyone else by trying it. 2) pickup a copy of the book "Impro: Improvisation and the theatre" [ http://www.amazon.com/Impro-Improvisation-Theatre-Keith-John... ] and try the various exercises described in the book. It's a book you can start reading on any page. Improvisation and perception exercises show how make believe our experience actually is. People have made everything up. I'll happily send you a copy if you like.
From "Impro", http://www.amazon.com/Impro-Improvisation-Theatre-Keith-John...
"... Once you learn to accept offers, then accidents can no longer interrupt the action. When someone's chair collapsed, Stanislavsky berated him for not continuing, for not apologising to the character whose house he was in. This attitude makes for something really amazing in the theatre. The actor who will accept anything that happens seems supernatural; it's the most marvellous thing about improvisation: you are suddently in contact with people who are unbounded, whose imagination seems to function without limit."
Let me recommend the book Impro (http://www.amazon.com/Impro-Improvisation-Theatre-Keith-John...), in particular.
It describes a number of exercises where one actor takes the role of a superior and the other an inferior. The techniques are quite effective for the intended audience.
I would quote from it but I had a paper copy and it's really only worth running through once a decade for a non-actor interesting in the physical aspect of acting.
In AA they tell you to "fake it until you make it", and encourage newcomers to do assorted mundane "be useful" stuff like set up chairs or make coffee, even if (or especially if) you don't feel like doing it. The physical activity of being productive leads to a certain mental state.
BTW, much the same idea is discussed in this book:
Impro: Improvisation and the Theatre, by Keith Johnstone.
If you're honestly asking for more information: http://www.amazon.com/Impro-Improvisation-Theatre-Keith-John... <=Excellent part on status improv
Fresh book recommendations delivered straight to your inbox every Thursday.