Just once & i'll Stop

Simple sentence but deep meaning.

They told me not once,
Pity dirty rat in the sink,
Try to kill herself and think,
Suicide is not enough to thank,
It should be more exciting to break,

Life is not easy to let go,
How could you end it if you still glow,
Take the candle and never blow,
Walk in the isle and take the bow,
As you can see there is an arrow,
I gave it to you to follow ,
and not to feel the sorrow.