“It's all turned to slush at this point.”
It snowed a couple of days ago, but now it's mostly melted. You're talking with one of the other mothers. You say this about the snow.
It's all turned to slush at this point.
Snow that has partially melted, but hasn't completely turned into water yet, is called "slush".
"Slush" is different from "sleet", which is a mixture of snow and rain that falls from the sky. "Slush" is only what results after the snow has fallen and started to melt.
Use the phrase "turn to slush" to describe snow becoming slush:
It's supposed to get up to 50 degrees today, so most of the snow on the roads will just turn to slush.
"At this point" means "now". Use it when something was different before:
I'll take any job I can get at this point. I've been out of work for over eight months.
Almost everything has been taken care of at this point.
You can also use "at this point" to talk about something that might change in the future:
I'm not interested in selling it at this point. I'll let you know if I change my mind.