Thoughts that decorate my mind

Prisoner

I'm prisoned.
I'm a prisoner in my own mind.
I'm unable to leave.
To escape.
I'm stuck.
Please, let me out of this cell!
Don't you hear me begging?!
The walls which are fully covered in thoughts and unspoken words seem to come closer every time I look at them.
I want to run but I can't.
I can feel myself slowly going insane in this place.
In this cell.
In this mind.
In this never-ending nightmare.