I've only had 1 fully lucid dream. I have had two where I either came really close, or lost it.

One of them was a normal dream at first. I started to realize I was dreaming and was getting very close to lucidity when the dream suddenly became a little weirder and distracted me from attaining control. By the time I recovered from this diverting tactic, I woke up.

I've only had one dream that actually forced me out of lucidity for some reason, and you can find that dream here
In that dream, the reappearance of a character from a previous dream showed me that I was dreaming, and I quickly gained lucidity, although in some sort of restricted form. After a little bit, things got pretty chaotic and I dreamt that I woke up, which effectively rehid the fact that I was dreaming. By the time I caught on, the dreams 'epilogue' was done, and I woke with the number 40 or 41 very clearly in my mind. And yes, it was very clear that the number was either 40 or 41.