I get what's happening to you, I feel the same thing in a way. Once I discover I'm lucid, I'm so excited and yet I don't seem to put enough effort into it to stay lucid.

My own remedy for this is just reading and researching and learning abotu lucid dreaming constantly. I'm always trying to learn new in-dream tactics to motivate myself, and if you get pumped enough, when the time comes where you become lucid, you'll have a lot of motivation and tactics to implement.

At first glance, I'd say just try and keep yourself involved in the dream world around you the moment you become lucid. Engage your senses, all five, as much as possible and really try to indulge in a vivid experience.