2nd Quality LD - advice to improve?

[WhiteVeins]

I'm pretty happy today. It's been 8 months and 5 LDs, only the first of those being quality. I was beginning to think I would never be able to hold onto an LD again, but this morning I had my 6th DILD and managed to calm myself enough to make it last a few minutes! I made fire balls, floated, levitated a dog, did a Liu Kang kick and remained hovering, and briefly became Batman (the task I gave myself last night). I almost flipped off my banister, but I was afraid that I might be sleepwalking, acting everything out in real life, and would die (I'm not even in the same country as the house I was in in my dream. What an ass!) What woke me up? Well, I jumped through my window and landed in the street, but it was nighttime, pitch-black, and I couldn't see anything. I tried looking for lights inside a house, but I couldn't find anything and I think it was this inability to get my bearings that woke me up. Can anyone back up that theory? I figured next time I'll try the command "illuminate." Are there any other tricks? Also, I wasn't able to really pull off being Batman, because I couldn't see myself and somehow that killed it for me. Anyhoo, 2nd LD this month and a nice way to finish off my first Dream Journal. Thanks again to everyone who's helped me!