It's almost as if no matter what I do, methods, mantras, etc, I just can't become lucid. The closest I've ever gotten was having a dream about lucid dreaming, but nothing. I've been trying for over a year and a half, since July of 2019, so about 21 months. No matter what, I just can't become lucid. I've gone months on end without getting a LD and it's very frustrating, all though I try to keep my cool. Is it normal for lucid dreaming to take this long?