Ilikethisgame1

I’m looking for this specific story I can’t remember the author, or the name of it but it starts off with this college girl who just ran from a party that got busted by the cops, the cops are looking for her so she slips into a house and passes out in the closet, when she wakes up she is in an alternate reality where people her age are still considered young infants, they aren’t physically younger, just mentally. I’d really appreciate some help with this it’s been driving me crazy.