What I found last night, was that it was good to first concentrate just on a small patch of ground, and take a look around slowly, not whip my head about, when just before having gotten lucid.
I guess some of my optical problems at the onset of LDs had something to do with that. Not sure, though.
But it kind of resonates with some of the advice in here - "re-booting", starting with something small, confined and getting it stable before trying to take everything in at once.