Sharing a room means you’ve learned to find peace without a door. That’s rare.

Privacy is normally provided by architecture, and when the architecture does not provide it you have to build it some other way. Headphones, a routine, a way of going internal while the room is busy, all of it is a skill learned under conditions most people never face. It did not feel like training at the time, and it was.

Name the things you already do that create space without walls, and treat them as tools rather than as making do. Ask for small agreements about hours and noise, because that is reasonable to want.