What did this nightmare mean? Please help!?

Hey(: well today I was sleeping like around 12:00 and I wiled up 2:36 cause I had a nightmare ok well my dream started me being in the house with my family it was like around 7 I was in my ant room with my puppy playing out of nowhere the lights turned off and the 2 big dogs started barking like crazy I knew something was wrong so I try to get out of the room but I couldn't get out also the room was shaking finally I opened the door started running went outside cause I was scared alot of my family was there I told them something evil was in the house but they didn't believed me so I was outside in the front yard and than I see a bright white light like a car light I said this is good cause This means is a good spirit but than it left we went back inside of the house and the house was a mess! Everything was on the floor broken! That's when my family believed me something was wrong And than I forgot what happen but than we went again to my ant room and I was freaking scare to go inside but my mom was there sleeping it was like 3 in the morning so she told me to turn off the tv it didn't want to also the fan didn't want to so we went to sleep I was hiding under the blankets cause I was soo scared so out of newhere the ghost/Deamon/spirit comes to attack me and my mom it was a lady she try to get my blanket she was destroying stuff we stayed there and than my ant comes with candles lighten them up she started praying other stuff I remember I asked her that if she knew the lady or saw her cause somebody sent the spirit and wants revenge she respnse by saying that the ghost liked her something like that we got out of the room and we were at the living room thinking it was over I was sitting with my mom and out of nowhere the lady comes full body out of my cousin room! Like the excorsit! My mom told me to go to sleep and close my eyes but I kept opening them and the lady came coming closing that's when I woked uhp scared! So Can anyone help me what did this mean? Thanks