Hi, welcome to DV !

First, let me say you have 3 questions, and not two ( do a RC ! )

question 2: I had ( and still have of course in some degree, itīs normal ) a very similar stability issue. and i have lost too a very good amount of LDs in the first 20 seconds. I know how defeated one feels. But you can train yourself to fall asleep again quickly and, most likely, you will reenter the same dream. Ok, you still wake up, but if you can DEILD perhaps you will be less worried, and not so excited, and even if you are itīs not eh end.

For some reason, i am more sleepy in the late hours of sleep, which, fortunately and thank you God, is when REM is juicy and stable. Thatīs when we have the best chance to fall asleep and reenter the dream. So, an important thing is to sleep more time.