Everyone has a calling on their life, a role only they can fulfill.
Sometimes en route, you discover that your exact purpose is different than expected. And you've got to go with that.
Sometimes the way God wants you to give is not what you originally had in mind, but that's okay! He doesn't call you to do something you are unable to do. Follow that path and give of yourself completely.
You just might find that trail far more rewarding!
Giving is the highest level of living. - John C. Maxwell