Maybe you should try DEILD. It's a faster form of WILD where you recognize that you are awake after a dream has ended. If you don't move or open your eyes, it's almost guaranteed you will slip into a lucid dream. If you have an alarm clock or watch that doesn't keep ringing until you turn it off, try use that to wake you up. Here's a tutorial on it:

http://dreamviews.com/community/showthread.php?t=62769

Also check the newsletter for a section on it.

http://dreamviews.com/community/showthread.php?t=61054

Other than that, keep at it. The first one is often the hardest to get. Once you get the "feel", they get much easier.