Just do what you want, as and when you want to. So long as you do not intend to be imbecilic, you will not look back with regret. Have conviction! Repeat these things in your mind constantly, visualize yourself being socially assertive. Do this obsessively. And everytime you make a mistake - real or perceived - recount all the silly faux pas these supposed socialites commit DAILY!!! Dust yourself off, rinse and repeat. Don't live your live; own it!