She, like many others, paid a long, hard price to see success as a singing sensation. You bet she did. Obviously she allowed those experiences to motivate her to be even better. LeAnn pressed on toward her life's dream of being a young country superstar. Nothing can motivate me more than for someone to tell me I can't do something or to try to limit or prohibit me from reaching my dreams.
Absolutes cause an intense emotional reaction, either positive or negative, in most people.
But let's get back to my original line of thinking. At best, luck plays only a minor role in a person's overall success. Sometimes luck can only open the door for you. You must keep the door open by proving your credibility to your boss, fans or whoever you may have to answer to. And, yes, I do believe that sometimes even getting lucky can be a bad thing.