This poem's so disjointed it makes it seem as though you're saying the same thing over and over again, only add a new line when you feel the poem needs it or when the punctuation suits it.
Because you don't have any punctuation in there it makes it stop and start way too much, that and obviously the short lines.

I think it reaaally needs fixing.

Other than that, I like your message in this poem, it was quite refershing and unique. But I think your vocabulary and the way you explained some of the things could have been stronger.
I did still like this, though, 4/5.

jess ~

So many nights I sat in my bed,
Cried while guilt ate away at me.
But tonight will be the last.

I can't cry anymore tears,
I don't want to feel so bad anymore,
I want the guilt to go away.

I'm going to finally let it all go tonight.

I'm going to dance the night away,
I'm going to relieve myself from all the stress.

When the love of my life comes from work,
I'm going to just let go, dance with him.

It's time for me just to let everything go.
Have fun, no one not anything will stop me.

That's all it is, I cut out a few "and"'s because you can't start a line with those or else it looks trashy.