Discipline - Nine Inch Nails

Am I
Am I still tough enough?
Feels like I'm wearing down (down down down down)
Is my viciousness losing ground (ground ground ground ground)
Am I taking too much?
Did I cross the line? (line line)
I need my role in this
Very clearly defined
I need your discipline
I need your help
I need your discipline
You know once I start I cannot help myself
Now it's starting up
Feels like I'm losing touch
Nothing matters to me
Nothing matters as much
I see you left a mark
Up and down the skin (skin skin)
I don't know where I end
Or where you begin
I need your discipline
I need your help
I need your discipline
You know once I start I cannot help myself
I cannot stop myself
Once I start I cannot stop myself
And you know
Once I start I cannot stop myself
And you know
Once I start I cannot stop myself
And you know
Once I start I cannot stop myself
And you know
Once I start I cannot stop myself
I need your discipline
And you know
I need your help
Once I start I cannot stop myself
I need your discipline
And you know
Because once I start I cannot stop myself
I need your discipline
And you know
I need your help
Once I start I cannot stop myself
I need your discipline
And you know
Because once I start I cannot stop myself
And you know
Once I start I cannot stop myself
And you know
Once I start I cannot stop myself
I need your discipline
And you know
Once I start I cannot stop myself
I need your discipline
And you know
Cannot stop myself
Once I start I cannot stop myself