The Goofy Princess's Rise to Power

I transmigrated, and it's really, really unfortunate.

A pile of awful people, a whole basket of scumbag men,

but I'm not afraid. I've got a handbook for dealing with scumbags.

What, a domineering mother-in-law or a scheming concubine?

I'll beat them so thoroughly they'll never recover.

What, a haughty prince or an aloof genius?

I'll beat them until they're utterly defeated, too.

But after all that,

I realize my heart has gone missing.

I have to find it again,

but the handbook for dealing with scumbags doesn't say what to do.

What am I supposed to do?!...