Aww.. this poem was so sad ... but it was awesome how u rote it. I love it. Awesome job.. Please keep it up! =)

"Once upon a time over hills of green, and above skies of blue,
This girl was depressed, always crying and never smiling,
She has a letter that she wants you to read, that's true,
So please just listen, please hear her out, and read on:"

I really love this introduction, your words were so touching and I could tell this was going to be a really good poem....

"I am about to die, but I have something to say,
Even when I was hurting, even when I was upset,
I always loved you, from the very first day,
So here I lay dying, I have a few words for you,"

^Pefectly written. Wow, you have such sadness in every line, and this is so deep and powerful....

"My hearts been aching with the love you don't show,
And how I was a mistake, and how I knew you didn't love me,
But just remember all this stuff that I want you to know,
And just keep in thought of how much I loved you"

That is so sweet and sad at the same time. You still loved your parents even when they didn't really care for you the way they should.....

"Mommy, I want you to know even if you didn't love me,
I still knew somewhere deep within there was love,
Even if you didn't show it, even if you didn't let me see,
But the love for me was still there, I know it"

^I love how deep down you know that your mom loved you, even if she didn't show it at all....

"Daddy, I know even when you hurt me, I knew you meant well,
I knew you didn't mean it, and I knew it was all an accident,
Even when you beat me, even when you put me through that hell,
I'll still love you, and forever will my love for you be there"

This is filled with so much emotion and feeling, its incredible! My heart was touched when you said that you will still love him forever.....

"You both look so happy without me there,
And that makes me happy for you two,
Even when I was there, you didn't care,
But seeing you guys makes me glad,"

^I would replace "happy" with a different word, I just think you could use a more descriptive word, a synonym for happy. Just an opinion. I really thought you were going to be sad here, beacuse they are happy without you there, but you took me by surprise and your love and happiness for them will last forever..

"Remember I smiled through my tears
Despite what I've seen and done,
And laughed through the years,
And was happy for you,"

^Again, I think you could replace the word, "happy" and put something more unique, just cause you used happy at other points in your poem and I think you could put a word more, I dont' know, better fit, I guess.
But I loved your word choice especially in this stanza...

I loved how at the end you put "love, your little girl", a perfect way to end this poem. Overall, this poem was filled with so much emotion and feeling. It came straight from your heart and that's all that counts. There were a few places were I felt like you could use more descriptive words, and not just repeating some of the same words, but I really enjoyed this poem. Keep writing, always and forever.....

IT IS SO BEAUTIFUL THAT THE LITTLE GIRL LOVES HER PARENTS AFTER ALL THE BAD THINGS THEY'VE DONE TO HER.IT MADE ME CRY.GREAT POEM.