I just read a talk by Elder Bednar titled, "In the strength of the Lord." It was given 2001, if you have not read it I would highly recommend it. If you don't get to it today here is a little gem from it to get you by until you take the time to read it.
"Thus the enabling power of the Atonement strengthens us to do and be good and serve beyond our own individual desire and natural capacity."
I think at some point each of us talks ourselves out of things and tells ourselves that we can't do something just because it is hard for us. As I think of the Atonement of Jesus Christ I do remember that is is a redeeming power, but not often enough do I remember it as an enabling power.