Any time I think that I am dreaming in a dream, I count it as LD even if I don’t take full advantage of the lucidity. I think it helps to build your level of confidence and reduces frustration. At least you know that you are on the right track even if your dream was semi-lucid.

For example; last night I had a LD but it only lasted a few moments where I decided to fly but then I went back into normal dream mode. I have only had one dream that was fully, 100% lucid. It was amazing.

Knowing that such a thing is possible is the only thing that drives me to keep trying. So keep trying it's definitely worth the effort.