What horror movie is really really scary?

I really need help finding a very very scary movies like a movie that would make me like... i don't know just give me chills all the time and make me cover my eyes all the time. And before you go and tell me to watch exorcist or shining or halloween or friday the 13th or paranormal activity... i wanna just let you know i watched them and i just felt no chill and it just felt like watching any normal movie and i fell a sleep through the movie exorcist and shining and i watched the ORIGINAL version for exorcist and i just laughed at some parts. I just feel like i can't enjoy horror movies 'cause i just don't get scared by them. I wanna feel the chill from these movies. I mean why are they there "horror" movies if i can't enjoy them and feel as if they are actually horror films? Can't you people help me choose a horror movie that is SUPER DUPER scary?