All In One Act

By the time you read this
It won't matter at all
No matter what
I want to take the fall
It doesn't matter if you blame you or me
It is I who's clearly done it you see?
I know you might think this is very lame
But I want to take the blame
You could think this is a mistake
But I'm the one who made all those people's lives at stake
You were not a part of my foolish act
But this is a now known fact
That I did what I did and I can't take it back