The way I look at it - the Universe knows far better than I do what I need and what I need to know.
If I try to tell myself who and what I am and label myself on what I can or cannot do I am only limiting myself.
Richard Bach wrote in his book Illusions - the Adventures of a Reluctant Messiah - "Argue Your Limitations and they are Yours"

And it's true - tell the Universe who you are and you are.

Ask the Universe who you are and the Universe opens up to you.