Subsisting on Caffeine

Subsisting on caffeine
Unable to fall asleep
Because chances are
My mind will be busy
With the things I tell myself
Not to worry about

I know it's not healthy
But sleep isn't a priority
As the minutes tick by
I am always preoccupied
With dreams and wishes and things that gleam
Perhaps there is more to this sorrowful scene

Write a sestina, sing a song
Where will that get me?
My math homework is wrong
Too many vectors, I can't deal
With the consequences
My fate they will seal

So I will sit here in silence
As the screen stares back, blank
I may be a disciple of science
But I don't understand chemistry
I am drowning in the memory of you and me
So tomorrow morning,
I will subsist on caffeine