Stupidity at it's best

I'm writing this stupid poem
when i was supposed to study
If I write this in my exam,
Will my grades be steady?

My thoughts seem to waver,
I cannot even think,
I've wasted so much paper,
Even a lot of Ink!

This poem better be good
coz I've wasted so much time
I'm not able to brood
and just not able to rhyme

This poem seems real fine
nothing much to mend
But, there's a problem with the last line..
How is it supposed to end ?????