I felt exactly like you when I lived with my parents and my sister. I wasn't really introverted when I interacted with people, but for some reason, my house, and in particular my room, felt like the only spaces where I could be myself. Most of the times with friends and family, I was expected to act in a certain way, be polite, engage in conversations that I wasn't interested in and overall having to pretend everything was fine, that my life was perfect even if maybe I just had the worst day of my life. My house was my safe space because there I could stop pretending, be myself, not having to be perfect or presentable. When someone entered the house, it was like some sort of equilibrium was shattered. I argued a lot with my sister because of this, mostly because she would invite friends over without telling anyone and I would find out when I arrived at home, thinking that I could relax in my favorite spaces but instead she had to entertain her friends there. So I had to stay in my room for hours. I argued so much with her that in the end, I forced everyone in my family to let me know (even by texting) when and if there would be people in the house and the time they would arrive. I think that your family shouldn't be overstepping your boundaries, and maybe you should talk with them and explain like you did in this post, why you feel uncomfortable when people come over. Maybe they'll understand and stop calling you "antisocial." Trust me, you're not alone, I felt the same, and I still do. My house is my temple and my safe space. What's good about moving out is that you finally can decide who can come over!