My first 2 lucid dreams I remember were on the same night. Dunno how old I was but I'm sure it was a single digit. I dreamt I was in a theme park, then just spontaneously realised I was dreaming (like all my LDs ever). I thought "hmm... I can just wake up whenever I like". And I did. I sat up in my bed and thought that was pretty sweet, and tried to do it again. I went back to sleep, and was in that same themepark again, realised I was dreaming. I then woke myself up again, thought "yay", then went back to sleep. That waking up bit in the middle might have been a false awakening but I highly doubt it.