Here's one experience I've had and I haven't quite found a similiar one here yet (even though some interesting cases close to mine)

I was dreaming one time and after a few moments I also realized that I was dreaming.
Being interested about lucid dreaming and having read some articles about it before I thought: Well, this is my chance.
I tried to alter the dream and it seemed to work. I was in some rooms with my boyfriend. It reminded me of a museum. In the dream, I could make the walls change their colour and things like that. Everytime I felt like I was kind of losing the dream, I held my boyfriend's hand a little bit tighter. And there I was again. We walked through all of the rooms and I showed my boyfriend what I could do. In the end, we kissed each other (even though I knew getting too excited would wake me up).
Then I woke up, confused, and said to my boyfriend: Woah, I think I just had a lucid dream!

And then I woke up for real.

So my question now is: Have I really had a lucid dream? Or have I just, well, dreamed about it?