As with all obsessions, compulsions the stem is desire–desire for some gratification. so constantly be thinking, “How can I help? How can I serve?” with every breath you take. Then automatically you come to know where your services are most required.
You cannot have any expectations whatsoever. You have to realize that whatever happens you take your mind with you. You cannot leave it. And along with the mind come all of its past impressions and desires. The only way to overcome these pulls of desires is to sublimate this mind and the only way to sublimate the mind is to perform YAJNYA, do your disciplines, meditation and the Mantra. Then and only then Grace takes over.