My brother just attacked me?

I was playing on my 360 when he came in and started arguing with me i didnt respond so he started to mess with my stuff then i told him that if he wanted to clean up at least do it right. Then i grabbed a hammer and went to my room and punched the wall(i was really pissed) he followed me and i went to my dads room(he isnt home) then my brother came in and punched me and wrestled me to get the hammer(my brothers 2 years older and 1 foot taller) when he finaly got it i curled up in the fetal position hoping he wouldnt kill me...he left the room with his b and i went after the b and threw it agenst the wall then he ran after me and knocked me to the ground and punched me 12 times in the head(about four inches behind my ear is killing me right now and my neck hurts) then i ran and grabed a knife from the kichen and started slashing his door telling him never to touch me again and to give me the phone so i can call 911 or my dad he climed out the window and then i threw the knife at the ground(not towords him) and i paced around my house for about 10 min before going to my neighbers house and calling my dad its the fourth time hes attacked me im 14 hes 16 i need him out of this house scince the first week he moved back in he has been harrasing and bulling me i dont consider him family i havent scince 2008 when i had to leave my mothers house because of him im not leaving this time. Is there a way to get him out of my home