I'm having trouble categorizing traumatic experiences I've suffered with my younger brother. When I got my first phone, it was a common occurrence that he'd steal it to take pictures of his private areas and leave me to discover the photographs in my gallery. During this time, it was also common for him to peek into the bathroom while I was in there, which is why I'm so zealous over locking doors and turning mirrors away from me nowadays. At one point, he touched me inappropriately. I brought it up to my parents, but they either didn't believe me or simply didn't do anything about it. This behavior has ceased since then, but would these experiences be catalogued as COCSA given how he's younger than me? I want to understand this so I can learn to heal from it.