Complex sentence: Matthews' father was abusive towards her and her sisters and as a child, along with her sisters and step siblings, she was regularly shuttled back and forth between her father, stepmother, mother, and grandparents.
Split into simpler sentences: Matthews' father was abusive towards her and her sisters. As a child, along with her sisters and step siblings, she regularly moved back and forth between her father and stepmother, mother, and grandparents.