Okay so school's back on, and I've been getting 6 and a half hours sleep a night, resulting in missing out on the later REM cycles where all the vivid dreams are 
But last night, I got to sleep for a glorious 10 hours 
I was on a roller coaster on a very clear blue day, with a best friend from school and his girlfriend, when something weird happened.
I realised it was a dream just as the roller coaster was at a high spot. I started shouting "This is a dream!!" hoping it would stabilize me, and get my friend to realise too (you never know; it might be them for real).
But, again, I thought I was waking up. It was really just the dream getting more vivid, and when I was talking, I was convinced that I was half-asleep already and talking in my bed. I can't remember exactly what happened after that, but I know now that when I thought I was waking up and could see my bedroom, it was still actually a dream
So yeah, now I know that as soon as I get that last hour or two of sleep, I will ALWAYS have a lucid