Will Ferrell says his father's advice reshaped the way he approached his Hollywood career.Lia Toby/Getty Images for Warner Bros.Will Ferrell says a conversation with his father changed how he approached his Hollywood career.His father said talent wasn't enough — success in show business also takes luck.Trying, even if it didn't work out, wouldn't be failure, his father told him.Will Ferrell says that a conversation with his dad before he pursued…