I classify myself as agnostic. After I left the Witnesses I did what many do and that meant going to other churches and/or listening to other beliefs, At first, I started attending another church and it was fine for a while, but soon I also had questions about their particular beliefs.
Then I did a long study on the history of the Bible and realized how loosely it was compiled and often it was just a majority opinion as to what was included in the 66 books most Protestants consider Scripture. During that study, I paid a lot of attention to the Old Testatment and I came to the conclusion that something other than a Supreme Being was behind it. Human emotions/attitudes/reactions are what is reflected in this god Jehovah and his reactions are not even consistent.
So I have come to believe that I do not know for sure how we got here, but I am comfortable with being sure it was the the product of a Hebrew god of long ago.