Blunting my edges but in a bad way

I feel rather like
I am becoming dull.
Not that I was ever interesting. I mean that I'm no longer sharp. I wander around in a chemical haze and move slower than I think even slugs are prone to do.
I hoped I would have lots of thoughts and be deep while I worked.
Turns out being a janitor does not inspire deep thought. It inspires, in fact, no thought, and I am more blank than I was before. Which is to say, very blank indeed.

I need to keep my brain from dripping out my ears.
I need to write more.