It will happen again

Panic, says my mind.
Stay calm, I whispere back.
Even though I know the signs,
I'm still numb from the previous attacks

I reminisce the last time,
When panic grew inside me.
I told myself, I am going to be fine,
While actually, I just wanted to flee.

Instantly then, the roof disappeared,
Revealing to me, the daunting night sky.
Everything happened, precisely as I'd feared.
The clouds roared and began to terrify.

I lay on my bed,
About to shift or run,
When a pair of hands grasped my head,
Leaving me either stunned or frozen.

I was screaming and shouting,
Crying and pleading.
Then when no one came to help me,
My mind started drifting.

I woke up, completely out of breath.
Trying to calm my mind, but it was useless.
I didn't dream at all for several nights.
Still, I feel like it will happen again.

I remember the last time,
When panic grew inside me.
I told myself I'm going to be fine,
But I just wanted to flee.

Panic, says my mind.
Stay calm, I whisper back. You could use quotation marks here, don't have to, but you could.
Even though I know the signs,
I'm still numb from previous attacksPeriod?

I remember the last time,
When panic grew inside me.Good, but you could find some more emotional way to word this. Grew inside me just isn't very scary...
I told myself I'm going to be fine,I'm going, are you telling us about the past? It should be I would be fine, or I was going to be fine.
But I just wanted to flee.

Instantly then, the roof disappeared,
Revealing to me, No comma.the daunting night sky.
Everything happened, precisely as I'd feared.Good job.
The clouds roared and began to terrify.Began to terrify, I don't really like how that is worded, it sounds awkward.

I lay gasping on my bed,
Shifting myself to get up and run
When a pair of hands grasped my head,
Leaving me more or less frozen. And left would sound better.You've done a good job of hooking the reader's interest.

I was screaming and shouting,
But no one came to my help. Take out my, or change help to aid.
My throat went sour,
And I heard my mother yell.I think you completely forgot about your rhyme scheme at this point.

I woke up, completely out of breath.
Trying to calm my mind, but it was useless.Maybe just say, trying to calm my mind was useless.
I didn't dream at all for several nights.Like this line!
Still, I feel like it will happen again. You could say this instead of it. That would make it less vague and more clear that you are describing a nightmare with this poem.

"Panic", says my mind.
"Stay calm", I whisper back.
Even though I know the signs,
I'm still numb from previous attacks.-Punctuation. There has to be full-stop.

I remember the last time,
When panic grew inside me.
I told myself I'm going to be fine,
But I just wanted to flee.

Instantly then, the roof disappeared,
Revealing to me,No comma needed. the daunting night sky.
Everything happened, precisely as I'd feared.
The clouds roared and began to terrify.

I lay gasping on my bed,
Shifting myself to get up and run
When a pair of hands grasped my head,
Leaving me more or less frozen.This line seems wrong. I don't know where but it just doesn't sound right.

I was screaming and shouting,
But no one came to my help.
My throat went sour,
And I heard my mother yell.

I woke up, completely out of breath.
Trying to calm my mind, but it was useless.
I didn't dream at all for several nights.
Still, I feel like it will happen again.

"Panic", says my mind.
"Stay calm", I whisper back. Talking to himself, huh.
Even though I know the signs,
I'm still numb from previous attacks.

First things first, when you want to make a narrative poetry; you must tell...or show to the readers about the place and time of the story is being set, so that we, the readers, can determine quickly that you're telling a story at the same time you're also being poetic. Second, I don't quite understand when you told us that he is numb from his previous attacks. What happen to him, really? does he's being chased by a monster or a maniac, and what signs does he know? It's not specific enough to stand on its own, unless this is being answered by the next stanza. Last, these stanzas doesn't caught my attention (except the first line) because you only used stale words, which attempt to sound bland, unattractive and cliche. Add something fresh to grasp our minds such as "Depths of my thoughts linger me when nightfall came." something like that.

I remember the last time, Why a sudden change of tone? You somehow disrupt the tremble feeling as we continue reading your poetry. In order to make the flow go, it's better to omit these part to keep the intense feeling prospers itself. You should also remember the most important when making a poetry is to engage a feeling itself. But if you wanna keep it that way, you can revise this line into more sensible way so that it can completely blends with the previous stanza.
When panic rose inside me. This one is good! keep it.
I'd told myself, "I'm going to be fine", "time" and "fine" doesn't fit well. I think I like it better in this way, "I blather myself, "I'm not gonna whine."
But I just wanted to flee. Why he wants to flee? what happen to him? I'm completely hang in there for not giving us the complete details. You should elaborate more of this line, think about it.

Instantly then, the roof disappeared, I don't like this line. It sounds awkward
Revealing to me the daunting nightsky. Placing two adjectives at risk make it sounds chunky and loss of taste in poem. In addition, we already know night is a sky so you don't need to tell us about that.
Everything happened, precisely as I'd feared.
The clouds roared and began to terrify. The clouds roared and began to terrify? why? I don't completely understand what you mean by that? What happen, anyways? Likewise, is this the only thing you're terrified of, that the sky is turned upside down? what happen to your surroundings, are there stumbled trees on the road, are there heap of birds flutter around the night, or are there people screaming for help? there must be other things to add some drama better than this.

I lay laid gasping on my bed,
Shifting myself to get up and run
When a pair of hands grasped my head, you don't need comma here because the continuation is on the next line.
And left me more, or less frozen.

I was screaming and shouting, screaming Why you need to use the terms for "shouting" when you could repeat the word "screaming" itself. And in my opinion, I'd go in this way, "I am screaming and screaming until I can no longer breathe." to add some rhyme, it's up to you how you will do it.
But no one came to my aid.
My throat went sour,
And everything began to fade.

I woke up, completely out of breath.
Trying to calm, my mind was useless.
I didn't dream at all for several nights.
Still, I feel like this will happen again.