You Ruined My Life is about 11-year-old Minerva, a girl who lives in a Las Vegascasino with her Uncle Howie, who spoils her by giving her everything she wants. Minerva gets into trouble and her strict AuntHermione threatens to take her away. Dexter, a clever mathematics professor, finds out a foolproof way to cheat and win in blackjack, but he is caught. Dexter is burdened with a gigantic gambling debt. Uncle Howie makes sure Dexter tutors Minerva so she can gain admissions into a private school. It takes a while for this arrangement to work out between Dexter and Minerva, but finally they make great strides and Minerva amazingly learns everything very quickly. She runs away by herself to take the exam and pass. Meanwhile, Dexter and Uncle Howie's assistant Charlotte fall in love.