In all honesty If I am to ask myself why I am still a Christian, one of it would be the unbroken the Apostolic tradition and succession that goes back to the Apostles, no religion has a reliable chain that actually goes back to its founder like Christianity can and no religion on earth has the same theological continuity Christianity has, I can go back to to Polycarp, Ignatius of Antioch, Clement of Rome, and they all believe the exact stuff I believe. Learning about the Trinity and Christology were also a major part of my journey that helped keep me in Christianity. Christianity has taken the best out of both the worlds it came into contact with, it does not proclaim the primitive concepts of the Jews and yet it avoids the mad polytheism of the Greeks. It has taken the basic monotheistic truth from the Jews and the philosophical eloquence of the Greeks. No other worldview can so successfully claim to do that and still proclaim truth.