Sending you giant
from Montreal, Quebec.
Take some time to do a bit of deep breathing. I found that really helps to center me when I get frantic.
You can do this.
Your mind is already coming up with solutions. Yes, you can get a few essentials at Target...perhaps you can ask a family member to go by the house and pick up your things for you tomorrow.
Once the school day is up, get online to look for a hotel rental nearby your work and your DD's school. Once that is done, give yourself permission to "check out", not call anyone or take any calls, and just enjoy your urban camping with your DD.
If you need more brainstorming ideas, you can come here and we'll help you think this through.
You can do this. Remember HALT (Hungry, Angry, Lonely, Tired).
Remember to breathe.