She has been active in her professions since 1979 as a psychotherapist, researcher and tutor / lecturer at the University of Cape Town. Mandy has worked with children, adults, teenagers and students who have been dealing with depression, drug addiction, sexual abuse, parenting issues, academic underachievement, relationship difficulties, post-divorce/separation adjustment, adults wanting to improve their own parenting skills, and teenagers engaged in ecotherapy programs who are trying to replace drugs, drinking and sexual experimentation in their lives with more life-giving activities.