Being Christian means being a follower of Christ.
We should strive to be Christ-like, as Christians. That does not mean that we always succeed in our endeavors. None of us are perfect.
Perhaps the best way to say it - for me - is that I am a Christian before all else. I am a born-again, evangelical Christian. Yes, I do rely on reason. But being a Christian is more than about reason. It is about a relationship with my Savior.