First notebook entry: Introducing myself

Correction/addition of text

(You don't have to, but I suggest that you put this in)

Deletion of text that I saw to be a mistake or grammatically unsound

Deletion of text that isn't incorrect but (in my opinion) is either unnecessary, redundant or stylistically unsound

Hi Jinho. Let me just start by saying this was a really interesting journal entry. My method of correcting looks like absolute chaos, and I hope you are able to make sense of the alterations I have made. If you have any queries regarding my correction (or any criticisms), please don't hesitate to comment. I hope your wife is okay, too!

Last week was a hard week to for my wife.
She works at a language school in a local University. It is just the beginning of the winter vacation courses, so she has hectically[1] been hectically struggling with a lot of work and (new?) students.
I think, that this may be the reason she had the sleep paralysis last night. In Korea, we call it ‘Ka-Wee-Nool-Rim,’ which means being pressed by the ‘Ka-wee’ ghost.

Yes, she actually felt as if someone was pressing down on her chest by with their hands[2]. Even She was not even able to lift a finger tip. It was (almost) as if she was had been turned into a stone statue.
She opened her eyes. Then, she realized that four indistinct strangers were staring at her as standing from just beside the bed. She was so scared and frightened.
She tried screaming to scream and calling call (out to) me, who(, in the dream,) was sleeping peacefully beside at her. But she couldn’t… She couldn’t open her mouth, couldn’t or say anything at all.
Even worse, was that two of them started whispering on in her ears, ‘die…die..'

Well, actually it didn’t actually happen. She just dreamed had a terrible nightmare because I was not sleeping.[3] I was watching a YouTube clip by on my iPad.
She reproached me for not awaking her up, despite that she had been calling out to me so eagerly desperately.
But it is not true. She hadn’t called me at all. It was just a dream, that was very real life-like.

Most of these ‘dreamers’ claim that it is their dreams are like real life.
They think (that) they have really opened their eyes and are awake since it is too so vivid and detailed. [4]
Often they (are able to) explains and describe the scene (of the dream) in detail, like such as there being a cup on the table (that isn't really there), or friends who are watching TV beside them, belighted or the room light in the room being on, and so on.
But nothing none of this is real. They realize that there is no cup is on table; no one is at in the room, and the light is off.

Commonly, the dreamers say that they: 

- experience these dreams when they are so tired physically tired and so stressed.
- feel drowning down [5] when they are about to falling in asleep(so they know it will happen)
- feel a lot of pressure on the body and cannot move in dream.
- see someone or some people as standing beside or riding on them. (riding on them?)
- feel that the dream is so vivid and real.
- repeatedly (have the same) dream (over and over) again if they rarely cannot awaken themselves. OR: keep having the same dream over and over again if they are unable to wake up

Some experience so it easily and often. The most scary scariest case I have heard of is that of the 'Ka-wee' pulling the dreamer by the hair into under the bed as and stabbing him/her in the chest with a sharp gimlet.
Luckily, I have never dreamed it had a dream like this.

Thanks God.

[1] Try not to split up a verbal phrase like 'has been.' You can say has been hectically struggling or has been struggling hectically.

[2] To avoid the problem of using 'their' when referring to a person in the singular, you could rephrase the sentence like this: Yes, she actually felt as if someone's hands were pressing down on her chest.

[3] This doesn't make sense, unless you did mean to say the reason she had a nightmare was because you were not sleeping.

[4] This sounds a bit weird. This sounds better to me: They think that they are really awake because it is so vivid and detailed.

[5] I don't know what you're trying to say in the underlined part.

Good job!