I have no idea if she is ND or what kind it could be.
But you can look at techniques that help with ND kids - they will not hurt a NT child.
Google AI comes up with:
Before the Party - remind them if they know the veune or look up location pics on line and who they will know there. Have an exit plan before leave for party s etablish exactly how and when you will leave. For some children, attending just the last 30–45 minutes of a party is a huge win because everyone leaves at the same time, removing the FOMO have a sensory kit prepare a bag with noise-canceling headphones, a favorite comfort toy, a familiar snack, and a preferred low-demand activity (like a tablet or fidgets).
At the party because countdowns alone (like "5 minutes left!") can actually trigger anxiety, focus on concrete sequences -
StrategyHow it HelpsActionable Example
Sequence Over Time
Focuses on events rather than an abstract concept of time.
"First we will have cake, then we get the party bag, and then we walk to the car."
Visual Timers
Allows them to visually track the remaining time without guessing.
Use a visual countdown app or a time timer where the red disc disappears as time elapses.
Micro-Resets
Lowers nervous system arousal before making a big move.
Ten minutes before leaving, step into a quiet zone or outside for a juice box and a tight hug.
Transitional Objects
Bridges the gap between the fun environment and the boring car ride.
"You can carry your new party bag/toy all the way into the car and hold it on your lap."
After the Party: Decompression
- The "Sensory Hangover": Recognize that your child has likely been "masking" or holding it together in a high-stimulus environment. A meltdown in the car or right when you get home is a sign of decompression, not bad behavior.
- Schedule Cushioning Time: Do not book back-to-back activities. Block out a few hours post-party for low-demand, quiet activities like sensory play, a dark room, or their favorite screen time to let their nervous system reset
Some of those I was doing for my DC automatcially and some were not needed.
Time blindness is also a thing with ND - but with young kids generally so if you remind they you are leaving in 10 minutes and then at 5 and 4 - rather than counting down I found those reminders were helpful rather than actual count downs.