Article continues below advertisementNicole Kidman is plotting a striking comeback following her shocking split from Keith Urban after nearly 20 years of marriage - with sources telling OK! she is "h-----bent" on transforming her image and reclaiming control of her life after what friends describe as a "painful and exhausting" end to her relationship.The Oscar-winning actress, 58, and her country music star ex, also 58, who wed in 2006, were often seen as one of Hollywood's most glamorous pairs, known for their public displays of affection and shared appearances at high-profile events.