before i start, I'M NOT QUITTING LUCID DREAMING!

at school my friend told me this scary stuff,, (demonic) and it scared me for a long time...
it's basically haunting my mind... so, i'm scared that when i enter a lucid dream, i might accidentally summon something scary even though i don't want anything scary. hard to explain but it's like thinking about... demons... and your mind randomly yells "summon a demon" and it scares the hell out of you, or even worse, it wakes you up.

and the whole dilemma is, WHAT SHOULD I DO? i'm clueless of what to do.. :C