Hmm, if your mind wakes up while you are falling asleep that can actually be a really great thing for lucid dreaming! If this happens again, try not moving a muscle and staying very still. Allow hypnogogic imagery to overtake your minds eye, and if you're lucky you will fall into a dream while still conscious, and since you will still be conscious you will easily be able to recognize you are in a dream, thus becoming lucid!

Oh, and welcome to DV!