Darkness a poem about depression

Darkness

The darkness comes
It's here to stay
Tired of fighting
To keep it at bay

The meds aren't working
Or not enough
When everything hurts
It's hard to be tough

In sleep there is comfort
At least for a while
But waking is hell
There is no denial

Like Sisyphus' boulder
The burden never ending
Deeper I spiral
I can't keep descending

After the darkness
There should be some light
I can not find any
It's perpetual night