Yeah, if you're not maintaining a dream journal regularly, I can't recommend it highly enough! I'd even go back and write down those two lucids from a few days back if you haven't already. The lucids are especially important to write down and relive IMO because this keeps the experience fresher in your mind and will help a great deal with training the habits and skills you'll need for control, stability, etc.
Fortunately, it's never too late to get back on the wagon! I'd say start by writing down (and reliving) those two lucids. Then once you make regular journaling a part of your routine, it will give you something to review before falling asleep. Lots of benefits there!