I finally decided to join after lurking for the past week

I'm 21 and I'm a geology student in university, I've been interested in learning how to lucid dream ever since I had a crazy dream fantasy adventure in an incredible world, but I woke up without being able to recall it properly and eventually completely lost it.
So far I've been doing reality checks every day and writing down my dreams every morning in a DJ. Also I've been reading and researching sleeping and dreaming (don't know why, just thought it'd help).

I had my first LD after 16 days (I managed to fly around which was cool), it's been about 9 days since then, but I've yet to have more lucid dreams.

Is there anything else I should be doing? And how often should it take to have another LD kick in?