What is the scariest movie you've ever seen?

Okay, so i've seen a lot of scary movies i fell in love with them when i was young. I've seen the clics, and I've seen the new stuff. The new stuff seems to be the same thing over and over again and i'm sorry just because it's gory does not make it scary. I want a good thriller wtf is going on type of movie. These new movies are kind of a yawn if you know what i mean. Please help i'm so desperate.