One day John Wesley asked his mother to define sin. I doubt any theologian could have done better than she did.
"Son, whatever weakens your reasoning, impairs the tenderness of your conscience, obscures your sense of God, or takes away your relish for spiritual things; in short, if anything increases the authority and power of the flesh over the Spirit, then that to you becomes sin, however good it is in itself."
All comparison to others crumble at the feet of Jesus. The question I need to habitually ask myself is this..."Did anything in my day today take away my vigorous and enthusiastic enjoyment for spiritual things?"