CBT (cognitive behavioral therapy) is a form of psychotherapy that helps individuals identify and change unhelpful patterns of behavior and thinking that contribute to emotional distress. CBT focuses on developing practical coping skills, improving problem solving, and replacing negative thought patterns with more realistic and balanced perspectives that support lasting emotional and behavioral change.  
https://www.mywellnesshub.in/blog/what-is-cognitive-behavioral-therapy-a-complete-guide/
https://www.apa.org/ptsd-guideline/patients-and-families/cognitive-behavioral