Don't tell me I don't matter

That I am a mere speck of dust

An insignificant particle, a smear of rust

For I am the dagger

Forged with the iron from blood

That causes ice to shatter

And turns glaciers to flood

I have blown down mountains

Whose pinnacles had touched the sky

I have torn the deepest sea beds

And made the darkest waters cry

Look up at the river of jewels

Strewn over the onyx sky

I have streaked through the celestial heights

With thousands of comets by my side

Within me is a ceaseless storm

An every-changing symphony

A trickling stream of serenity

Surging into a whirlpool in the blink of an eye

I am tired of being cast aside

So don't tell me I am small

For I, I am made of stardust

And I am part of 

so...

                     much...

                                          more...

This poem was written for a school project/competition. I don't usually write poems and this is not one of my proudest works by far, but I want some feedback on my poems as I want to write more in the future. As you can probably tell, I'm quite new to poem writing--and quite bad at it too (this is one of the better ones already, believe it or not), so I really, really welcome some constructive criticism because it helps me improve.

I hope you liked it, or at least tolerated it. I means a lot to me if you read through this awful mess (hides in corner and cries).