I was at the cinema. I'm home right now. And everyone's busy..

Maybe do something outside with your sister.

Yeah... I think the problem is that my family doesn't have time for me... I can barely do stuff with them. They don't even talk to me. They ignore me. Especially my sister.

Natural*

That could be a reason why you feel like that. Not being active means that you're naturally hormones won't have a way to leave your body. So then.. you'll already just.. feel sad.