thanx for the advices!!
a couple of nights ago I had my first long LD since I joined here!! it was made with 4 segments where I was shout out because of external loud noises I think and I was able to get back. first I clasically DILD, the next one I had a false awakening-my surprise was because of I rised from my position on the bed but the dreamscape didn't changed! the third one I rubbed my hands and spinned around-It did work because I was fading out. And finally the fourth was the most amazing way of waking up inside a dream: I was dreaming on a chair with table?-sorry don't know the name for this classroom chairs, then a nurse loudly put a black metal flyer on my desk and I woke up inside the dream. It was... (don't have words to express this emotion)
I will post this LD later because I don't have much time by now.
Thanx to everyone!!!