quite a few times now i have found my conscious mind waking up in dreams, realising i am dreaming and waking up. I become lucid but get excited and wake up. is this lucidity?
actually, i dont remember the dream i am in, nor do I know I am even dreaming, its more, knowing that I’m asleep?
Anytime you realize you’re dreaming, that’s lucidity. The waking up thing is pretty common when you have your first few LD’s. The trick is to not get excited (yeah, it’s hard 
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There are also several techniques that help you stay in the dream, such as rubbing your hands, looking at the ground, spinning etc. Try a search to find some others. After a while you get to the piont where you can stay and explore the dream. Good luck 
the thing is, i realised i was sleeping, but i wasnt in a dream, or not that i can remember
You should first keep a dream journal. Once you’ll better remember your dreams, the state you were in will certainly be clearer to you.