I don't think it is random at all, you just have to work on building the atmosphere more, because the picture you provide is a bit vague, which leaves it feeling empty. I'm pretty sure if you elaborate more on the surroundings to create a better mood, I think it would clear up the picture of the feelings you were writing about and get them well enough across. The reason why I say that is because by providing a full picture for people to see when they are reading, you are helping give the reader the information so they can better envision the feelings connected to the situation you are describing.
For example, this is what I came up with using the first verse of your recent poem, and I changed it, by adding in some lines to help fill the picture... the rest is up to you to decide upon.
There's something in the water
What it is I do not know
As the waters wake approaches near
From out of the depths of darkness
What it is is not from here...
I sometimes like to read back on the stuff I did in the past so to try and improve it if I feel like something was off, or if it was incomplete, or sounded random. It's good exercise to try to clear up work so it sounds better. But I'm sure you'll think of something, it's not as bad as you think.
Burning flames from within,
Slowly consume me whole.
Filling and destroying
As the past meets present,
Leaving my future unknown.
Threatening my heart but
Wounded and torn,
While my soul remains just
Bitter and cold as stone.
I stand alone an outcast,
Looking out into the abyss
With nothing to hold dear,
Except for only this flame
Till the reaper's gaze nears
With each new day,
I rise a new hell's spawn.