Five years to go.

The minutes tick on
The clock is counting,
Down the time goes.
Yet still it's not fast enough.

A day passes,
still not enough.
Another and another.
But still no word.

My worry for you
Grows to a nagging
persistence thought.
Its only been a week.

A long agonizing week its been.
Five years to go I remember.
I don't know if I can hold on that long.

I want to know if your happy.
Are you happy, sister?
Please don't ever forget
That I'm still here.

You've seen so much.
Things kids your age shouldn't.
You know the game
Our mother plays.

She doesn't seem to notice,
That she has ripped us apart.
Her foolishness has left us scarred.
We smile and laugh
Like a a treacherous denial
Of what really is our mom.

You miss me yes?
Don't worry I won't leave
Not when we are back together.
I'm sorry for the pain and the wait.

Five more years to go.
I don't want to let go
Of that smiling face
But the last we spoke
Was filled with tears
And laced with pain.

Please be happy my sister
We won't be apart for too long.
Hang on for us, my darling.
Be strong. Be happy.
For that is all I want.

It was very good. It showed a lot of emotion through out. Now there were some parts that you were phasing (music term: meaning that it's not in sinc and sorta all over the place)
Here's some nit picking:

Five years to go I remember.

Now, you need a comma in there so instead say

Five years to go, I remember.

It makes a little more sense, but it would be even better to remove the sentience entirely so the poem can flow better.

You miss me, yes?

and the rest you'll be able to figure out just by re-reading it. Now, to make life easy (and to keep reviews nit picking free) write the poem, then re-read it the next day. You will not believe how easily you will find mistakes.
But, overall it was great! Keep on writing!

The overall idea of the poem is a strong one, but after a couple of readings, it tends to become a bit cliche. It could be any two sisters torn apart by your mother. What makes these particular sisters special? There are some hints, like the bit about the "treacherous denial", but what was denied, and how did that affect you? Why do you have to wait five years before you get to see her again?
And here goes with a verse-by-verse critique, just to address some minor grammar and spelling issues:
"The minutes tick on
The clock is counting,
Down the time goes.
Yet still it's not fast enough." Here, the rhythm of the verse gets disrupted by the last line. The other three lines are four words long, but the last line has two more words. The "yet" here isn't really necessary. The line would have a bit more impact, and would fit with the cadence of the verse better if it was written, "It's still not fast enough."
"A day passes,
still not enough.
Another and another.
But still no word." This verse is a lot better. The rhythm matches in all the lines, and you get the feeling of the endless waiting that the sister feels.
"My worry for you
Grows to a nagging
persistence thought.
Its only been a week." Here's the first of the grammar issues. It's "persistent", not "persistence". Also, the last line of this verse would sound better if it was switched with the last line of the previous verse. Then, you address different ideas in each of the verses, and don't jumble them all together.
"A long agonizing week its been.
Five years to go I remember.
I don't know if I can hold on that long." Okay, in this verse you want to address the idea of linear thought. In poetry, you can twist up sentences if and only if it fits the context of the poem. In the rest of your poem, the narrator is speaking fairly normally. Why would she suddenly switch, just for this verse?You really have to think of the context and the type of narrator you have. It's a good idea, and a great technique, just watch what sort of poem you use it in. Here, it just doesn't fit.
"I want to know if your happy.
Are you happy, sister?
Please don't ever forget
That I'm still here." Here's another minor grammatical error: it's "you're". That's a particular pet peeve of mine, though I understand how people can simply forget under stress. In addition to that, the idea in this verse is a bit confusing, especially in the last two lines. If they're sisters, why would one of them forget that the other one exists? That also comes back to the circumstances in which they were torn apart. Is there something in those circumstances that might make one of them forget? Add in a line or two explaining that, and it'll clean up nicely.
"You've seen so much.
Things kids your age shouldn't.
You know the game
Our mother plays." Again, what game? What has she seen that she shouldn't? If you explain little things like this, it'll make both of them seem so much more real.
"She doesn't seem to notice,
That she has ripped us apart.
Her foolishness has left us scarred.
We smile and laugh
Like a a treacherous denial
Of what really is our mom." Another grammatical error in "like a a treacherous denial." Only one "a" is needed. Also, you changed the syntax here. Why? Did you have a larger idea to get across to us? It seems like you did, but also that it's a continuation of the previous verse's idea. Just, watch it when you change syntax like that. It can really trip people up.
"You miss me yes?
Don't worry I won't leave
Not when we are back together.
I'm sorry for the pain and the wait." Why is she asking if her sister misses her? And why is she apologizing? Is it somehow her fault, or is she being sympathetic? This sort of character development goes right back to the question of what happened? Why are they apart?
"Five more years to go.
I don't want to let go
Of that smiling face
But the last we spoke
Was filled with tears
And laced with pain." Okay, why was she crying? Because they were saying goodbye, or did the narrator do something? The question of what happened really affects the whole poem, so without that being answered, a lot of this that could have a lot of impact just falls flat.
"Please be happy my sister
We won't be apart for too long.
Hang on for us, my darling.
Be strong. Be happy.
For that is all I want." Okay, so first she was begging her not to forget about them, and now she's telling her that all she wants is for her sister to be happy. The narrator really needs to make up her mind. Either that, or somehow accept the fact that her sister might forget about her, or not want to talk to her anymore, and then simply wish for her sister to be happy. Again, it comes back to the back story. What makes these sisters special, and what happened to separate them? Address those, and the poem will turn out really well.

Really powerful easy to read poem, I like it. I love the emotion and how it's simply like your talking to your sister (persuming this is true that is) and telling her how you feel. I love the sadness but how it has a little hope twisted in there. It's poignant but beautiful and so heartfelt.
Good job

This was a rough draft and I thank you for the reviews. I will fix it later on...most likely during school ^^ I didn't put as much into as I wanted to before I had to log. <3 for the reviews and I will try and fix it x.x