/diy/ - Do It Yourself

Hi /diy/
I'm looking to modify my door/doorframe with some kind of locking mechanism that allows me to lock/unlock it from the outside as well as from within. I'm 19 and living at home, saving up for a room near my uni. Problem is, my parents don't allow me any privacy, and still treat me like I'm 12. I've tried diplomatic reasoning, but they refuse to recognize me as an adult. I've tried putting a door stopper under the door from the outside and removing it with a pocket knife when opening, but they just put all their weight onto it and open it regardless (we have a very slick floor). I have to lock my room somehow since they still go through my trash and shit looking for cigarettes (I don't smoke) when I'm away. Ideally, I want to install something that doesn't require major changes to the structure of the door (drilling holes, etc.). I've thought of this little rotating piece of wood at the bottom of the door that I can flip up (not locked) and down (locked) with a special hook-shaped stick, but I've not conceptualized it clearly enough. Plus, they'd just find a way around it. Help me, please?