Being unfortunate

I admit that in the past I've been a nasty

They weren't kidding when they called me kinda strange

But you'll find that nowadays

I've mended all my ways

Repented, seen the light, and made a change

And I fortunately know a little secret

It's a talent that I always have possessed

And dear lady, please don't laugh

I use it on behalf

Of the miserable, the lonely, and depressed (pathetic)
My poor unfortunate soul