Listen to the recommendations to read LaBerge. I would start only with LaBerge (ETWOLD and ACILD, ACILD is very valuable because it summarizes all activities into step-by-step exercises) and start doing MILD after you build dream recall , and only after you have had a handfuls of LDs that way would I move on to other more "esoteric" (non-LaBerge) approaches. Mindfulness is wonderful and I love it, but it only made sense to me after a few dozen LDs and hundreds upon hundreds of non-lucids -- you have to get to that point where you just know deep down inside that at any time you're conscious, you could be dreaming. Everyone's different though, perhaps mindfulness for some can come sooner.

But still start with LaBerge, it's all you need to get lucid.