Hi Jessica,
Please confirm after creating the database you are navigating to the Azure SQL Server to change the Networking settings and not the SQL Database. You may see a list of your SQL Servers using link below:
https://portal.azure.com/#view/HubsExtension/BrowseResource/resourceType/Microsoft.Sql%2Fservers
Once you navigate to your SQL Server, you may click on the Networking blade on left. On right you should see the ability to turn on Public access if not already enabled.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP