Crisis of Faith

I have found Jesus again a couple years ago after a series of unusual/ paranormal events took place in my life. These events always had a scientific explanation, but I have preferred to believe in the mystical explanation. However recently I have started to question that explanation again. And When I started, I turned again to the bible.

The problems that I had with that book rose again. Namely, how can God exist and have given us this book, when some events in the book never took place, like for example the flood. Anthropologist today believe that the flood never happened and the story of Noah etc.. if pure fiction. So, how can God be real given that.