As long your mind is thinking about dreaming, you should get a few. Never quit as many people have times when they can't recall anything then like a month later there recall became godly and let them remember 2-3 dreams a night. Seem like that happen often based on the things I heard.

Writing in your DJ even when you did not dream anything is a great habit. I often write more then "I have no dream", I often write stuff like goals or what I did that night, ect.