Personality is who you are when other people are watching. Character is who you are when no one is watching. You can act like a Christian all you want, but the true measure is who you are when you are all alone. Only you and God know if you are saved by the blood of Jesus.
Therefore, my beloved, as you have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling;
Be a person of character before God. You can fake it before men, but that won't make it before God.