You could also read your dream journal before sleeping. You could visualize the dream while reading and then see yourself saying 'this is a dream' 'this is a dream sign' in a calm way not concentrating really tensly. I think this is also a part of one of LaBerge's techniques. I think it is MILD. I am not certain. Haven't read the book in a good while or done any of his techniques other than just trying to recall and make that really good.

The point is to be aware of something yet not tensed or anxious or upset. This is why I want to try meditation.

Also, you could explore your mind and ask yourself why it is you want lucid dreaming and why you feel you are not able to do it. Once I realized that the reason I couldn't generate dreams concerning the world of Dragonlance, a series of novels, because I really did not want to and I really did not like the characters or the world any more I was able to relax and have nice dreams of other things and not feel all crazy all the time because I was trying to dream of stuff I really did not want to.

I suppose our brains way down are more grown up than we might be.