I had a dream that my mother was trying to kill me?

Last night I had a dream that I remember relatively well. It started with me and a bunch of other teenagers going into this important corporate building to have some kind of meeting. For some reason, I was using my mom's laptop during this meeting. When we left this posh/corporate room we had to hide because we weren't supposed to be there. We hid in this pitch-black room for a while, and then we left. Before left though, I realized I forgot my mom's laptop in the room. I couldn't go back and get it because there was lots of security. When I came back home, I think my mom found out and she was really angry with me. She tried to kill me by throwing this sharp stone-like object at me. That's all I remember, so I must have woken up at this point. I was looking at dream meanings, and I was wondering if my mom might represent some aspect of myself (forgetfullness?) that I'm trying to erase? I have a mostly good relationship with my mom, and we don't usually get super angry at each other, though it happens from time to time. Anyway, this is kind of freaking me out, so If anyone has any thoughts that would be much appreciated! I'm 17 f, still living with parents (if that helps). Thanks!