The possibilities are limitless when one puts their mind to accomplishing something.  The key to learning anything are what I call the 3 Ds.  The 3 Ds are dedication, determination and discipline. I recently saw a video of this Danish guy who taught himself how to use a long bow.  He supposedly did a tremendous amount of research and put in thousands of hours of practice.  Allegedly he came up with a theory of how to use the bow so proficiently that he now holds several speed records.  Now, I don't know anything about the long bow or how it is used, but his video makes sense to me.  There is a well known Buddhist saying that goes, "When the student is ready, the teacher will appear."  Many take this to mean that a teacher will come into their lives.  What the aphorism really means is that anyone and everything can become your teacher when you are willing and open to learn.  Most things in life cannot be taught but can be learned.  The point is that with dedication, determination and discipline one can achieve their goals.  Check out his video.