Guilt is a learned emotional response, a manifestation of a neurotic behaviour. Feeling guilty about what you have done is not learning from the past. Weak people revenge, strong people forgive, intelligent people ignore. Learning means recognizing mistakes and resolving, to the best of your ability and awareness, not to repeat them. Nobody can live in the past and function creatively in the present. Your mind cannot cope with two realities at the same time and reflects whatever occupies your dominant attention. Forgive yourself and, with a positive and happy attitude, move on towards the future.