Hello,
Everyone faces different types of struggles and challenges in their lives, and some of them are bigger than others, but choosing to end your life is not the solution to any problem. It will just pass on your grief to those who love you. You should go and visit a psychologist, who will help you sort out the feelings you have associated with the childhood incident that troubles you. The psychologist will also help you figure out strategies in order to deal with the consequences and residual emotions of the incident and will help you understand how to control the frequency and intensity of your disturbing thoughts.
Next Steps
Visit a psychologist
Health Tips
Try and focus on the your thoughts and emotions in the present state. Join a hobby or exercise class, go taking walks daily or do meditation.