Tedious crying and whimpering.
Should win an award for the most useless character (the mom) in a horror film. "Sacrifices" herself because...what? Too stupid to think of some other plan? And even that failed.
If you set out to make a character unlikable so they can redeem themselves in the story later- make sure they DO redeem themselves and not just bite the big one because they're an idiot.
Cry cry whimper scream at the daughter cry cry whimper whimper.
Yawn.
Waste of time.