Can anyone explain my dream?

You just had a lucid dream. In lucid dreaming, you are conscious and you know that you were dreaming. That's pretty good because most people can't achieve the state of lucid dreaming. I would find that it doesn't necessarily mean anything. Maybe it was just a whole run-through of what you have done. Dreams usually are like a mirror of your subconscious thoughts. But I would say that this didn't exactly make much sense, considering that you were lucid dreaming. But it could be so likely that you were creating your own story and then you were kinda "living" in it, because its possible in lucid dreaming. But it was weird, and I find that in my opinion, it doesn't really mean anything.