It is healthier in the long run for a Christian to flirt with agnosticism as God, in His infinite love, permits. I will tell you why that is.
Our life may only be lived once. Unlike Hindus we don't get other lives to try again. Still, we better be very sure that we are Christians beyond a shadow of a doubt otherwise we will have lived a sometimes incomplete life all for nothing.
Agnostics believe there is no one Book that contains all the truth you need. Christians believe the Bible has all the truly big answers. Can they both be right?
Could a synthesis of both be valid or simly an intellectual exercise?
Could one be an agnostic who flirts with Christianity's Bible occasionally as he might flirt with the holy books of Hindus, Muslims or the Tao revered by Buddhists?
Could a Christian attempt to find valuable insights in these centuries-old writings, as well. Where would he or she draw the line? A preference for the Bible would need to take center stage otherwise the truth-seeking Agnostic would be a more honest approach to one's life and those we interact with.
Whichever camp you choose to join I wish you a happy and productive life. Peace I leave with you.