From Son of a Preacher man to Freethinker

How did I get to my views? I grew-up in a Pentecostal holiness church, my father (deceased) and mother were ministers (my mother still is). As most religious ideology begins, mine begin as a child. I attended church every Sunday, Wednesday, and whenever there was a revival or other function going on in the denomination I was in church. I accepted the bible as the "word of God", inerrant, infallible and literally true. I accepted the story of Adam and Eve, the fall of man, the flood and everything from Genesis to Revelation as absolute truth. I grew up with the idea of the imminent return of Jesus and so I felt there was no reason to plan for the future or be concern with educational goals, marriage, or planning for adulthood.
My transition started about 12 years ago. I was faithfully paying my tithes but was falling behind in my bills and so I ask the question, why does an invisible deity need 10% of my income? For those of you who don't know what tithes are it the belief that 10% of your income belongs to God, it was establish by the priest (Levites) in old testament times as their inheritance when the 12 tribes of Israel divide the conquered land of the Canaanites, the Levites did not get an inheritance of the land therefore the 11 other tribes were require to give them 10% of whatever their land produced(see Deuteronomy 26:12-15). This simple question started me on my metamorphosis from a bible carrying, speaking in tongues believer to a freethinker. With this question on my mind one day I was searching the internet and I came across an essay by Thomas Paine called the Age of Reason and this was the first time I saw someone critical of the bible and especially Christianity. I had read the bible through and through and I never thought about the atrocities that Jehovah, Moses, Abraham, David, Joshua, Elijah, Elisha, Sampson and others did in the Old Testament. I accepted it as the will of God. Then I thought about the Original Sin story of Adam and Eve and how ridiculous it appeared, that all of humanity was doom because two people were deceived by a talking snake.
Therefore if the doctrine of original sin is foolish so is the idea of atonement. Why do I feel the original sin and atonement is illogical? If I commit a crime, I don't expect my kids or grand kids to do my time of incarceration or to die in my place if the death sentence is required. I don't take the bible literally anymore it is just a compiled book with ancient Hebrews, Egyptians, Babylonians, and other near east mythologies. I do not consider myself an atheist nor am I theist, I am just a skeptical freethinker. If I am an atheist it would be in the sense that I don't see any evidence for a personal god or deity, but if there is an ultimate cause that is impersonal then this seems to be at the present something that is unknowable, how would I know if this isn't either a super-alien or a supernatural god, I don't know neither the hypothesis to test this nor even the question to ask to get to a hypothesis.
I would say as Socrates, I know that I don't know and this made him the wisest of men. My present belief can be summed up by Dr. W.E.B Du Bois reply to a priest: In 1948, a priest wrote to Dr. Du Bois asking him whether or not he believed in God. Dr. Du Bois replied: "Answering your letter of October 3, may I say: If by `a believer in God', you mean a belief in a person of vast power who consciously rules the universe for the good of mankind, I answer No; I cannot disprove this assumption, but I certainly see no proof to sustain such a belief, neither in History not in my personal experience. If on the other hand you mean by 'God' a vague Force which, in some incomprehensible [sic] way, dominates all life and change, then I answer, Yes; I recognize such Force, and if you wish to call it God, I do not object.