Although I have seen many very, very successful lucid dreamers count all their lucids, from my personal experience found that it made me focus on the number too much, rather than the actual dreams. I became too concerned with fulfilling my frequency for the week, and could not make any improvements on it. Then, I got rid of my LD count, and had no trouble with it since. Is it just a personal problem, or does an LD count/frequency count generate unwanted expectations?