Okay so my friend talked me into lucid dreaming but im kinda scared that ill get stuck in it and become unconscious or something like what happend in insidious where some spirit will take over my body also my friend said he heard voices when it first started and i have anxiety so i will most likely freak out if i hear that because i get scared really easy also and i was wondering if i should try it or not
Appended (A little anxious) to the title for clarification. 
Haha, don’t worry. The voices your friend mentioned are natural and they are hallusinations so they cannot do any harm. You cannot get stuck in a dream and end up in limbo (like in Inception), and no “spirit” or whatsoever is capable of possessing your body! Don’t be discouraged by these things, there’s no harm in the whole thing and lucid dreaming can be a wonderful experience. + You got a friendly community ready to help you with any problems.
What Slumbie said, there is nothing dangerous about lucid dreaming. LD’s are the same thing as ND’s except you are aware that you dreaming and therefore you can consciously control your actions and the dreamworld with practice.
What you seem to be worrying about is Sleep Paralysis, but that should only be a concern if you plan on using SP to enter into a LD, so I would suggest trying out some of the other techniques like MILD, WBTB, ect.
Lol it’s funny I discovered lucid dreaming while researching astral projection after watching Insidious. I was a little hesitant at first too, but the more you research the more you will realize how truly amazing it is and not dangerous at all. Read as much as you can about lucid dreaming and you’ll get seriously motivated to do it! At least I did 