I remember having a dream like about 4 months ago where I was in school. The teacher gave me a cartoony like unrealistic amount of homework; what I mean is that the teacher gave me like a 4ft stack of books/papers.

I remember that I stood up and said," I don't need to do this, I'm in a dream!"
After that I immediately woke up. I remember thinking to myself about how weird that was to know I was in a dream.

Back then I didn't know what lucid dreaming was, and I do realize that even though I said that, I didn't really feel like a controlled what I said, almost like that was planned in the dream.

Was that a lucid dream? If you simply are able to say "I'm in a dream" in your dream, would that be considered a lucid dream?