The internet offers a great number of tools to support individuals who want to “re-set” themselves from a past of traumatic injury. There are articles, videos, and instructional websites designed to support a person on their healing journey.
In this link Dr. Gabor Mate’ describes how he learned from his practice with patients that childhood trauma is at the root of most physical, psychological, and behavioral distress, including addictive behavior: https://www.youtube.com/watch?v=I3WzMpjtkrs
These links describe Emotional Freedom Technique Tapping, which many people use to mitigate stress and to support the creation of new patterns in the brain that allow for healthier, life-supportive choices and access to positive feelings:
In this link Dr. Bessel van der Kolk discusses his book, The Body Keeps The Score: