What am I?

I come and go as I please, and you have no control over me.

What am I?

I don't care if you want me or not, I will grace you with my presence nonetheless.

What am I?

I will break you, I will fix you, I will elevate you, I will destroy you.

What am I?

You can't see me, you can't hear me, but you sure as hell can feel me.

What am I?