I think of Elder Russel M. Nelson's remarks in the October 2013 General Conference about our weaknesses:
...It seems that in every family, if not in every person, some physical conditions exist that require special care. A pattern for coping with such a challenge has been given by the Lord. He said, “I give unto men weakness that they may be humble; … for if they humble themselves … and have faith in me, then will I make weak things become strong unto them” [Ether 12:27]. Stellar spirits are often housed in imperfect bodies.All of us have different weaknesses. For example, I have a lot of trouble concentrating on the scriptures and missionary lessons during studies in the morning. I also have a tendency to let conflict build in my mind without discussing it with my companion, which makes it difficult to concentrate and be happy. But as I think about Christ and the love He had for all people, it makes me able to put myself aside and begin to love them in the way He would.
I think of the examples of people who have disabilities much more challenging than mine. A woman who lost both of her legs continues to work and even swim:
Also, a man who has muscular dystrophy has nevertheless grown up into a successful businessman and father: