That's really cool you had a lucid before you knew about lucid dreaming. I can't imagine how bizarre that must have been.

It sounds like you are doing things right for recall. One thing that helps me is keeping a waking journal. I don't know if you have heard of it but basically you just write the highlights (or you can add more detail) of the days events some time before bed. If that gets too time consuming; Another thing CanisLucidus came up with is pausing every 2 hours or so during the day and just briefly spend a few seconds reviewing. This seems to help prep your mind for remembering.