Complex sentence: The frequent relocating made her an insecure child, and she struggled to establish friendships, but Moore has remarked that an itinerant lifestyle was beneficial to her future career: When you move around a lot, you learn that behavior is mutable.
Split into simpler sentences: The frequent relocating made her an insecure child, and she struggled to establish friendships. Despite these difficulties, Moore later remarked that an itinerant lifestyle was beneficial to her future career: When you move around a lot, you learn that behavior is mutable.