Why my life have to be so empty? I don't understand?

Why now days my life have to be so empty and nobody can understand me? Seems start from last month this kind of things is keep on happening to me. Argue with my parents,my mum don't understand me,my previous Facebook account been hag, always mistaken by someone and ... . I don't understand why my mum thought I had become a bad guy and she say she had not recognize me anymore in this few days with the reason of easily angry and not very obey what she say. Today when I was coming back from school one of my classmates keep on annoying me and still he dare to put some thing like glue on my chair and when I sit it I found that when the time is almost time for going home and I was totally so angry and so I use my middle finger and scold him a few bad words and all this things had been saw and heard by my mum. My mum now is not listening to me no matter how I explain to her she just don't want to listen to what I say. I'm totally fardup in keep on doing a lot of explain so I just leave her alone and get back to my room. I found that in this house nobody can be trusted and I'm so lonely alone don't know what to do? I'm so afraid what will happen next to me. So afraid!