"Well my sis was a lil annoying when she was younger. Now she isn't.. Sometimes we get into real bad fights and then she ends up crying, mostly..But now even though we quarrel over petty things, I don't like how she hides things from me…"
"I still suggest talking to your parents. Talk to them in a calm manner. Don't freak out and whine, because adults tend to just ignore and not take you seriously if you do that. Just calmly talk to them about what she does. Tell them that…"
"Hmph...you need to set boundaries with her. I never had that problem with my older sister, but my younger one just had no respect for my stuff when we lived in the same house. This is partly because my mother sort of babied her and didn't see…"