I can't write a longer poem

I can't make a longer poem
And I don't know the reason of that
I just write very short poems
And I don't know why is that
I already wrote five poems
And I keep on doing the same
Half page, sixteen lines?
Is that even suppose to be right?
I can't write a longer poem
Even if I try really hard
After fifteen or sixteen lines
I say that is all right
I can't write a longer poem
And its hurting me inside
It really bothers me, its annoying
I can't write more than a half
I had a dictionary next to me
To look up for more words
But it seems not to work
Because I can't write more than above
I can't write a damn long poem!
And its getting me pissed off
Gets me desperate to end it quickly
It gets despair and then I just finish it
I can't write a stupid page poem!!
And I'll probably explode if I don't
I think I'm slackening with my poetry
And can't do anything to repair that
I'll try to keep on doing it
But I doubt I will be done
I can't write a longer poem..
Fck it..I'm already done.