Soo - I seem to have a bit of success with something - and it might well be the hypnosis, which I repeated yesterday and 2 days before.
Night before last night - I got shortly lucid in the most un-useful circumstances - I decided to go on with what I was dream-doing, since it was very pleasurable.
And last night - I got lucid again, and thought of my plan to follow The Cusp's tip with establishing a 3d environment - but - I didn't concentrate on the cognitive side of affairs a la dutchraptor, and so I happily lost lucidity in the beautiful 3d landscape I got..
But I did not wake up or loose perceptions - I've been lucidly running about for a while!
Much better than that streak of seconds-lucid fadeouts to awake.

Besides hypnosis I do a bit of image-streaming, but only under 10 min. yesterday because it can be quite strenuous.
And I did a bit of imagining a dream and becoming lucid in it before sleep - nothing else - and for that my success is quite nice, I would say!