The problem is that there are a ton of people that do exactly that. I live in New York and over the past year I've dated a string of actresses, some moderately successful (several year soap runs, broadway), some less so (off broadway, guerrilla theatre, etc. . .) All of them have been outrageously dedicated and talented. Still, for all of that there is no guarantee of success at the end of that multi-year struggle.
It's a good lesson to learn that risk isn't a word that means "work really hard for several years and you'll get your pot of gold." Risk means that you could pour your heart and soul into something, be extremely talented, do everything right, and still end up with nothing. To think otherwise is to fall prey to the just world hypothesis.