I had maybe 10 or so years ago when I was really trying and had a lot of time to research and sleep. Now I feel as if I can't really get into the same mindset I had when I first achieved them. They are still so elusive but that novel sense of wonder and discovery at having a lucid dream and it is hard to recapture. Some say you can have lucid dreams when you least expect them and that not trying actually works in that regard. That doesn't seem to be working in my case I have found. I suppose actively attempting techniques and keeping it on my mind is one way to regain the consistency with lucid dreams. Motivation is one of those thing as with anything is a fleeting thing when you don't succeed but it is a really awesome feeling when it pulls through and motivation skyrockets.