My new obsession: Brave New Voices

I always Loved poetry and thought that spoken word artists were simply AMAZING so when I saw the HBO show Brave New Voices with all that young talent I was compelled to give it a try.
Here is the forst poem I wrote:

My Caged Heart
Sorry I am the way I am.
Im up and down, hot and cold.
But you have to realize
I am this way becuse my heart is in a cage.
Uncapable of giving its fullest potential
Of love because the barsn of the cage
Are selfish and want all the love to its self
But Im able to seep just enough love out.
My heart is in a cage and I dont know
who or what holds the key.
So I jump form hot to cold
When you put the key in and
it fits put it wont turn to
Unlock the lock.
I jumpfrom up to down
When you promise you can open it
Even if by force.
But the cage it too strong for your might
so you simply give up.
YOU PROMISED!
Im sorry that I am the way that I am
But you made me that way.
Oh what is that?
In my fists clenched from all the
anger I feel towrds you.
The key?
I held the key all along.