I am reading a book right now, that explores connections between physical and nonphysical matter reality (PMR/NPMR). The precise definitions of those terms are not too important right now.
There are certain authors who resonate with my own take and experiences when it comes to operation OOB. This author certainly applies.
We have a lot of technical people here. Lot's of creative ones too. Ever try to solve a problem or create and you get stuck? A long time ago I figured out that "stuck" means walk away and clear your mind. When you come back, if you're still stuck, walk away and when you return, turn the problem upside down and approach it in an entirely different manner.
Who on this site is still struggling with lucidity? OK, lots of people. You get the usual encouragement, and good advice from the experienced LDers, blah blah blah ,...
There was a passage in this book that summarizes the challenge and potential solution space quite effectively:
"Learning how to be sentient in NPMR does not represent a new skill that must be mastered, it simply occurs spontaneously after self imposed constraints are removed: It is unlearning that is required" ... (unlearning) .... "is not easy. Nevertheless, unlearning always yields to steady serious effort".
Hokey? Why do so many children report having lucids and they dry up as their PMR experiences and learning build up? Why are so many people in agreement that expectation is everything?
If you are still having troubles. Stop. Turn the problem upside down. Unlearn some of the dogmatic nonsense you've acquired in your adult life, and take another swipe. It's not learning that is required. As stated above, it's probably more about unlearning negative expectation and constraints.