I was 9 months before I even had one short little lucid. Then it took me another 3 before I had another. I had a few more after that but they were all random and not caused by me doing an actual technique to try to induce them.

What I'm saying is, taking a break does help usually, BUT if you take too long a break it can hinder your progress. I took a break for a week and my recall went down to nothing, so be careful.

Also doing techniques could be whats causing your problems. Maybe just try going to bed with the intention to lucid dream, but not actually trying to. As in don't try to have one, but remember that is it your goal each night.