Hi everyone! nice to meet ya!

So I had this really weird dream and I'm not sure if I was lucid or not. Can you guys help me out here?
In my dream my friends and I were hanging out at a mall. After some time we got tired and decided to go home. I was in the parking lot and I jumped into my friends car. And while I was sitting next to her I thought to myself " am I dreaming?" and looked down at my hand to perform a RC. But right when I looked at my hand I heard a very loud noise kind of like a gunshot. And the dream faded VERY quickly until everything is black. Then I started to see images of dying or already dead people . At this point I was trying to get up but I couldn't so I decided to relax and eventually woke up.

So was this a lucid dream or not? And what happened to me at the end there? I plan to try again tonight so any advice for that scary crap?

Note: I have been doing MILD for two weeks now and this was my first time using WBTB.