Of course, not everybody can behave like a social butterfly, but a normal person at least talks to their family. I know I will never be able to talk to them about personal stuff, but talking about everyday things should work (how was school, how was work...).

Just now my mother yelled at me again wanting a REASON why I'm being the way I am. As I said, I myself have no idea. I told her I would try to behave normally but that I couldn't give a reason why.

When they start to talk to me, I feel like I want them to leave me alone. As if I was afraid of getting closer to them. Or maybe I feel like the everyday stuff isn't worth talking about anyway. It's really a hard situation. Imagine a house where 4 people live and one of them is acting like he doesn't care about any of them. + we really see each other just on the weekends; on weekdays, I leave home early and come home very late.

I know these sound like problems of a 15 year old.