It depends,but most of the time I dream about being those heroines in 18th century era romance books. Especially "Whitney, My Love" oleh Judith McNaught.
If it's a novel character... Maybe Scarlett O'Hara. I cinta her pride and strong personality, I too had to fight for a living. But I think her not confessing her cinta to Rhett Butler in time is one of the biggest tragedies literature ever gave birth to. If I was in her clothes, I'd surely try to change that.