On the threshold of disaster

I'm on the brink,
On the edge,
Push me over,
I dare you.

It won't take much,
A gust of wind will do,
Bitter words,
Whispering of accusation

I'm on the threshold,
Of disaster,
On the verge,
Of a breakdown.

All I need is a little shove,
Do it;
I know you want to.