I would focus all my energy into finding out what did I do correctly with the article and it resulted in people sharing it! In this way you can write more articles after this one and keep your self up and running. If you do so you can start your own blog and then even through a simple wordpress you can find out who shared in which country and when! So try to keep up the good work. All you need is making a daily programme and routine and have someone examining this article that you wrote in order to give you tips regarding the success of it.