The primary aim is to assess the effectiveness of the Nuevo Amanecer-II (NA-II) cognitive-behavioral stress management program through a 6-month RCT with 150 Spanish-speaking Latinas with breast cancer in three rural settings in terms of improving quality of life (QoL) and reducing distress, compared to a usual care control group (that is offered the program at the end of the 6 months). The investigators will also test the effects of the program on biomarkers of stress (hair and saliva cortisol) and aging (telomere length from saliva). Trained Latinas, called Compañeras (Companions), who have had breast cancer deliver the stress management program in-person to Spanish-speaking Latinas with breast cancer.