Thatīs it, I had LD again this night (as I said, anytime I want to spend some time and effort, I succeed in inducing LD) and this time it lasted for a few moments longer than before, but the main thing: I did not wake up because any kind of strong feeling, but simply because dream crushed around me. And that means I am in a phase when all I need to do is learn how to stabilize once I am in a dream.

I spent one hour in the night meditating and repeating to myself that there is noting to be scared about. It helped, drastically.

Thank you all for your help, I think I am on my way to make one final step to becoming lucid dreamer.