We are what we repeatedly do. Excellence, then, is not an act but a habit.
Work everyday to improve yourself and being your best self will become a habit. Excellence and talent are not things that people are born with; they are traits that need to be worked at and refined. Think of yourself as a work in progress; all you need is a little time and effort.
"We are what we repeatedly do. Excellence, then, is not an act but a habit." - Aristotle