Associations based on one's name during childhood may influence who one becomes, by establishing links to a religious saint or a pop star, to the family history, to a fictitious or historical character... How the name sounds may generate some influence too. It generally works by implicitly setting expectations (and acting as a reminder of them). But the associations and the (parental) expectations, not the name itself, are what conditions the emerging persona.
A name - as a fixed label - conveys (and contributes to) the illusion of permanence of the ego. We're nothing permanent, we're constantly changing, adapting, accumulating, losing, remembering, forgetting... Our dreams and aversions evolve. It may still be practical to use a conventional view of people: although people constantly change, most do not change too dramatically overnight... People are never the same, but most of the time they're almost the same, in a way. So conventional views may still be useful and relevant. Names are the same: they can be a useful tool. Just don't get too attached to yours.