Dracula, Nightmare on Elm Street and Friday the 13th.
I've re-watched Friday the 13th - Part 8 [Jason Goes to New York] and found out why I'm scared of needles, Jason kills a drug addicted with his heroine needles.
I remember when I first saw the moive IT" , I had to take a **** and I was horrified, and was too scared to use the bathroom. I though IT was gonna jump out the toilet and pull me in.
I haven't lost sleep from a movie since 5th grade but that was because I watched so many of them that my whole day I was paranoid that Michael Meyers was going to come and kill me...now I usually never get scared from movies BUT the insidious trailer when I first saw the red face I was creeped out (but then of course the movie sucked balls)
I think of all the movies the one that most recently was scary for me was the strangers (just b/c the one scene in the poster)...also the ending of the shining always freaked me out