Why are my LDs so unstable?

[Timothy Paradox]

My power levels are below 9000. Today I managed to get two lucid dreams, but they were really short. In the first one I was in my room, but it was pitch black so I couldn't do anything. For some reason I yelled "Light please!" but I guess the God of light didn't feel like responding because nothing happened. Then I tried to escape from my room by flying through the roof. Didn't work either. I jumped up, but for some reason gravity was incredibly strong so I couldn't fly. I tried like 10 times, and really believed that I could, but it didn't work anyway. Then I woke up, happy that I achieved lucidity, but of course disappointed because I couldn't do anything. In my second "lucid episode" I was also in my room, but this time everything was very bright. I looked out of the window and noticed that the road was purple. But the dream was ridiculously unstable. I moved one limb (I was just standing there) and that made me wake up. The question is this - why are my LD's so bloody unstable?? I can't even use stabilization techniques because of this. My dreams NEVER last longer than 3 minutes either. Usually one minute. I want MOAR!