I have been socially awkward since childhood, before I became a JW. The Witnesses made me worse. I was lucky to have a friend who was not a JW who listened to my tale of woe after my disfellowshipping. The JW friend that I had abandoned me before a judicial committee was formed.
I see my problem as a combination of innate personality and the negative effects of growing up as a JW during the formative years of my adolescence. As to overcoming them I have yet to do that fully. Working with people in retail stores helped me to socialize my self and practice my communicative skills but that depends on the type of work that you have.