All study interventions, i.e.: the experimental intervention, the psychological control intervention, and the control condition will occur simultaneously twice a week to avoid participants from involuntarily switch groups. Therapists of the psychological experimental and control intervention, as well as trainers involved in the control condition, are not involved in the recruitment, assessment, and assignment of participants of the study. Study interventions will be held in group sessions with 6 to 8 participants each; we plan to conduct five such batches till we reach our sample size of at least 30 participants in each intervention arm.