The Proverbs 31 Single Woman: Possible?
I just now re-read Proverbs 31, and without the husband references, there is no reason why this chapter could not refer to a single sister as well. I know plenty of women who fit this description, and I know one in particular who lives these verses:

She is clothed with strength and dignity,
and she laughs without fear of the future.
When she speaks, her words are wise,
and she gives instructions with kindness.

So, lighten up and live your life, never regretting the past, but looking foward to the future. And may the devil's behind have your shoeprints on it.