my sister(16) went on my (19)laptop and went thru my messages and saw nsfw convos between me and my sugar daddy and other guys as well. there were also videos and pictures involved and she showed it to my dad. she's done this because she was mad at me for something i don't even know about. this has ruined me and my dad's relationship as well as my mum's. i need advice on how to get her back for this cuz she's acting like she didn't do anything wrong. i already plan to pour sugar all over the carpet in her room, i've put her toothbrush in the toilet and scrubbed the toilet with it as well, she's done this to me numerous times for petty reasons. i also plan to take the remote of her led lights, throw out her shoes and cut up her clothes. obviously it's going to be done slowly so no one suspects me. she also owes me 52 bucks and won't give it back to me and i can't get my dad to make her cuz he's not talking to me at the moment. any advice on how i can get her back stealthy?