It's kind of like mastering the guitar. Not going to happen by accident, and not going to happen quickly.

But, the process of learning is it's own reward. Personally my definition of success lies in the vividness of my dreams, not if I am lucid or not. I want to enjoy dreams every night, I don't care if only some of them are lucids. There is nothing like a really "real" feeling dream.

Also, don't rush it or stress out about it. Infinite patience brings more immediate results.