Oil, bane of my water

You merely adopted the darkness
I was born in it
Filthy
Covered in oil slick
A single drop of water
in what was once a tall glass
Oil keeps it sealed shut
Feelings bubble
Fit to erupt
Movement starts to shake me up
Water pushes oil up
and out!
My voice can finally shout
My walls drip in darkness
So I learn to harness
Climbing with a rope weaved
of my own sorrows
For the first time I’m thinking past tomorrow
Will I meet you on the morrow?
If I get a say
I’ll run towards that day
Until then
I’ve residue to clear away