If I have difficultys with the contents of the bible being accurate, how do I no that Jesus is the son of God?

I have been a christian for many years, and I have just 'felt" in my heart that the bible was true. But recently I have really been thinking about how men in the corrupt church in the past have used the scriptures and had the power to change them for their own benefits. Even if I dont know it for sure...it is definatly possible. So I started having problems with which parts are true and which ones arent. Expecially with tithing, premarital and ity. But what Im most concerned with is...it scares me to think Jesus might not be the son of God..This worries me to think this way because I am very concerned with my eternity, and what I teach my daughter. I dont want to lose my faith, but I cant just pretend if my heart and head tells me different. I still beleive that there is a God, and that there still is alot of truth to the bible, i just cant trust all parts and dont know which ones. Please no mean bible bashers reply.