After having more than 3 LD's in the past few weeks, I learned one of the rules to Lucid Dreaming:
DO NOT think about what will be your next move.

Like many mentioned on this site, dreaming is where the subconcious takes over. I've noticed that if I try to take too much control or try to manipulate too much, I end up in either complete darkenss or wake up.

For example, this morning I did some WILD after my son woke me up around 3 AM. In the dream, I was having some fun with some DC's and decided to ask myself, "Hmmm. What should I do next?" It seems like everytime I ask myself that, the dream fades out.

Lesson learned: Go with the flow! Looks like I have some reading up to do on the subject of dream control.