The difference between William Hung and your beautiful wife, Marvinq, is that William lived Being and Doing first, and then Having, while your wife has it the other way around. She *has* a dream, she dreams of *having* a lead role -- *having* it dropped in her lap, somehow, someday. William, dopey as he may be, took the initiative to *be* whatever it took to get himself down to the cattle call and *do* his audition, and then to *do* his best, such as it was, at performing. And now he *has* his dream come true.
I think if having your dream is all you've been thinking and talking about, it would be worthwhile to look for another dream that inspires you to be and do what it takes to live that dream right now.