Only He knows your heart.

1 Samuel 16:7-- "Man looks at the outward appearance but the Lord looks at the heart."
This is true for all of us. We look at the outside and what people say or do. The Lord does not. He "looks at the heart". The Lord ultimately knows our hearts and where we stand in our faith regardless of what we say or do. He knows us so intimately, every detail of our life (Psalm 139). So don't be down on yourself when you fail. Because we WILL fail and mess up but even then, the Lord knows our hearts true desires and stands ready to forgive us. Only the Lord truly knows your heart.