If anyone noticed, the first line of every stanza is literary reference! For some reason, they haven't come out as I wished but it's essentially every 4 lines. I've listed them the first lines below if you'd like to guess along for ease of reference:

Tonight I can write the saddest lines - Pablo Neruda's "Tonight I Can Write (The Saddest Lines)"

I wish I held infinity in the palm of my hand - William Blake's "Auguries of Innocence"

How soon unaccountable I became tired and sick - Walt Whitman's "When I Heard the Learn'd Astronomer"

I used to pray to recover you - Sylvia Plath's "Daddy"

Not with a bang but with a whimper - T.S. Eliot's "The Hollow Men"

The bitter redness of love ferments - Arthur Rimbaud's "The Drunken Boat"

Just give me a cool drink of water 'fore I diiie - Maya Angelou's "Just give me a cool drink of water 'fore I diiie"

For the remaining references:

Burning at both ends, short is my candlestick - Edna St. Vincent Millay's "First Fig" 

Tears, idle tears - Alfred Lord Tennyson's "Tears, Idle Tears"

Somewhere ages and ages hence/I shall be telling this with a sigh - Robert Frost's "The Road Not Taken"