I had this dream about a month ago, and I still keep thinking about it. I don't know what exactly it means. Maybe you guys can help.

Dream:
It started off with me in high school. One of my best friends from 8th grade was there, even though she goes to a different school. In fact, in the dream, every floor in the school was a different high school. We were walking up the stairs and the hallways were empty because we arrived early. She stayed on the 3rd floor and that floor was the high school that she actually attends. I went to the 4th, which was the high school I attend now. I couldn't find my locker key, so I went back down to ask her to help find it, and she had it. I got my locker open and it was full of clothes.

The next thing I remember was an airplane crashing through the 4th and 3rd floors of the school. There wasn't a big explosion or anything, but everyone knew an airplane had hit. Later, most of the kids returned to their normal activities and went to class. I refused. I sat by my locker and refused to go to class. I was numb to this whole thing, but still somewhere in my mind I was expecting more bad things to happen. Across from my locker in real life, there are more lockers, but in my dream there were three classrooms without any doors. I could see the kids sitting at their desks, listening to their teachers teach. There was a room with a door, closed, and it was a principal's office. I was informed by one of my attendance officers that I would be meeting with the principal due to my lack of attendance in class. I was not intimidated by this.

The next thing was me at home. My mom didn't believe me when I said there was a plane that crashed into the school, and that I was too shaken up to go to class. By that time, the initial shock had worn off and I could feel my hands shaking. She didn't believe me, and accused me of simply ditching. We were talking this out in the living room, and there was a big window, with no curtains or anything, and we were about 5 stories high. In real life, there would be other houses across the street, but it was just a big, open field that could be seen for miles and miles. That's when I saw another plane and it was heading directly toward the window. I started panicking and I tried to get my mom away from the window and out of the living room. She didn't believe me about the plane, and didn't even turn around to see if it was true. She just laughed it off, saying there was no plane. The plane crashed into the house.

Again, there was no explosion. The house inside was barely damaged, but the floors cracked right down the middle of the whole house. My sister appeared as though she had been there the whole time, and stood on the right side of the cracked house, shocked. I helped my mom from the left side to the right side where it seemed safer. It was now my mom, sister, and me on the right side, but my dad was on the other side sleeping in a bed. My sister and I yelled at him to wake up and get out of the bed because the floor as sinking. He slowly did, just in time before the bed fell through the caved in floor. He then joined us on the other side of the house.

Then my mom told me, "I should have believed you."

I woke up.

Is there any meaning to this dream? What did it mean?

Background info:
I'm a guy, 18 years old, and I live with my parents and I have 6 siblings, three of which are in college. My mom and dad have been arguing and fighting quite a bit now. I'm more of a mama's boy.

-I'm close to my sister.
-My mom is one of my best friends, and I love her to bits.
-My dad and I never really had a good relationship
-My sister and I found out before my mom did that our dad was cheating on her.
-My friend from 8th grade was really fun to be around, though we never hung out anywhere other than in school. She invited me to come over her house one day, but I refused.

If you need more information, just ask.