i dont claim to be an expert on either religion, in fact, i am atheist, but i can at least say that i have read both, the bible and quran cover to cover, which is far more than what you have done. and you are the one who claims to be christian. how shameful.
I am a religion major. I am learning Greek, so I can read the NT in it's original language. I was a practicing Muslim for four years, and learned Arabic well enough so I could read the Quran in it's original language. Please don't try to tell me what I have done and haven't done.
Neither one of those religions are defined by those religious books. In fact, the first Muslims and Christians never even had either one of those books. If we look at the history of Christianity, at least (which is more my speciality), we see that many have rejected various books from the Bible. Just look at the Gnostic books or other supposed lost books. That in itself shows that the Bible, as it is today, is not the defining book for the religion.
More so, nowhere in the Bible does it state that a Christian must follow the Bible. And if you actually took the time to research the many different branches of Christianity, you will see that many do not take the Bible as infallible or even the word of God.
Probably the biggest point to show that a Christian does not have to blindly follow the Bible is Martin Luther. He, a leader of the reformation, someone who helped transform Christianity (at least some sects of it), and plays a huge part in the history of Christianity, rejected a number of books in the Bible, such as the Epistle of James and Revelations.