My room it's no longer my room.

I heard my sister say this phrase a few years ago. My mother had sold my sister furniture and put her things in boxes, so my sister's room was now a guest room. My sister was in shock, I didn't grasp the extend to it until I came back to Canada, and my brother had turned my old room into his office/warehouse. 

I had never had a space 100% mine until this place, and coming back, looking at how it is now under my brother's care hit me hard. Like everything I have ever done was worthless. 

It was a shock, but I'm getting used to it, I mean, everything I do turns to shit, why not the only place I felt at home?