Hey! How are you doing. Can you suggest me some good horror movies? Keep in mind that I am not easily scared. So provide me with the absolute best.
Sure, here are a few of the scariest horror movies according to IMDB:

1. The Exorcist (1973), directed by William Friedkin.
When a teenage girl is possessed by a mysterious entity, her mother seeks the help of two priests to save her daughter.

2. The Evil Dead (1981), directed by Sam Raimi
Five friends travel to a cabin in the woods, where they unknowingly release flesh-possessing demons.

3. The Changeling (1980), directed by Peter Medak
After the death of his wife and daughter in a car crash, a music professor staying at a long-vacant Seattle mansion is dragged into a decades-old mystery by an inexplicable presence in the mansion's attic.

4. The Sixth Sense (1999), directed by M. Night Shyamalan
A frightened, withdrawn Philadelphia boy who communicates with spirits seeks the help of a disheartened child psychologist.

5. Psycho (1960), directed by Alfred Hitchcock
A Phoenix secretary embezzles $40,000 from her employer's client, goes on the run and checks into a remote motel run by a young man under the domination of his mother.

6. The Texas Chain Saw Massacre (1974), directed by Tobe Hooper
Five friends head out to rural Texas to visit the grave of a grandfather. On the way they stumble across what appears to be a deserted house, only to discover something sinister within. Something armed with a chainsaw.

7. Pieces (1982), directed by Juan Piquer Simón 
The co-eds of a Boston college campus are targeted by a mysterious killer who is creating a human jigsaw puzzle from their body parts.

8. Lady in White (1988), directed by Frank LaLoggia
An author tells the story of how, as a young boy growing up in a 1960s small town, he was haunted after witnessing the murder of a little girl.

9. It (1990), TV mini series
In 1960, seven pre-teen outcasts fight an evil demon who poses as a child-killing clown. Thirty years later, they reunite to stop the demon once and for all when it returns to their hometown.

10. Rosemary's Baby (1968), directed by Roman Polanski 
A young couple trying for a baby moves into an aging, ornate apartment building on Central Park West, where they find themselves surrounded by peculiar neighbors.