You are magnificent. You are fearfully and wonderfully made, unique in this world and in the sphere you serve. You change lives with your love and service. You impact someone with your personality and devotion. Earth without you would be like It's a Wonderful Life without George Bailey.
But you have a handicap. It's a callous--an insensitivity, a fear, a secret, an irrational anger, an entitled viewpoint, a thundering malice, unspent grief, ever-deepening inexplicable sadness. The one of these that belongs to you is a callous because it threatens to move you away from your magnificence. The two cannot co-exist easily.
If you are grooming one, you cannot be grooming the other. A callous is hardening your heart, handicapping it from feeding life and strength into your magnificent self that the world so needs.
Are handicaps permanent? Some of them often are--physical ones, to be sure. But the calloused areas of our heart can be shaved away with intent and care and time and oxygen.
Time with God breathes oxygen into the calloused area, softening it with His care and His intent to get you fully into your magnificent self. We do the work of receiving His offer of help.
Maybe a better way to say it is that our true handicap is No...to God and His unveiling of our magnificent selves.