People come to philosophy in many different ways and for many different reasons.
My own reasons were largely religious in nature. As an undergraduate, I wanted to discover the extent to which the religious beliefs I had acquired in my youth could withstand close scrutiny, and I was especially eager to find a satisfactory reply to the anti-theistic argument from evil . If you are genuinely curious about something and willing to think hard and carefully about it, then you are already on the road that leads to philosophy. All areas of philosophy are fascinating, but the areas of greatest interest for me are the philosophy of religion and metaphysics. The philosophy of religion is simply hard and careful thinking about religion, but you should not confuse it with religious apologetics, or think of it as a part of organized religion.