I would think a late introduction is still welcome, maxmin099.

Myself, I have gone through a few periods where I tried very hard to get into LDing practice but to be honest, because of how my sleep works (poorly), it doesn't make a huge difference for me to really focus massively on practice, especially if it's only going to be for short-bursts. I have known and practised things about lucid dreaming for many years and still I have only had a handful of lucid dreams I can count on my hands and enough pre-lucid moments that I can't recall clearly anymore, but this doesn't really demotivate me so much anymore, I've learned to accept that I may simply take a long time to reach what I want (or what I don't yet know I want).

Your renewed approach to take some more time and try to be more patient is good and may take some self-disciplining but you may find yourself more balanced about dreaming as a whole for it too.

And for motivation, I like to simply visit the forum and keep my DJ here up-to-date, relative to the one I keep offline. As MoonageDaydream suggested, the threads for lucid tasks and the book club can also be good ways to focus your efforts in general towards lucid dreaming -- keeps you thinking about LDing after all.

I don't know if I would describe your behaviour pattern as immaturity; I guess it does takes some measure of maturity to realise when we're being immature, but I would say that you're just very eager to experience lucid dreaming in full again so I guess there's some degree of impulsiveness there. Truly, I can't speak for everyone, though I think sometimes it's easy to burn ourselves out from doing something if we're very enthusiastic about it but we're not getting to the results we'd like to see and sometimes we just get busy with other things anyway. Just don't put yourself down for it, that's what's important I think.

In any case, good luck with your renewed lucid dreaming journey.