As Bob Timmons correctly suggests, Find My is NOT disabled for the very reasons he suggested. And he's also correct in letting you know your carrier will not try to track the phone for you, nor will Apple. Apple never gets involved in lost or stolen devices.
The sad reality is stolen devices are rarely, if ever recovered. Ask your carrier to blacklist the phone and be prepared to buy a new phone. If you invested in an AppleCare+ Lost or Stolen device plan, this wouldn't be an expensive issue, but if you didn't, you'll have pay the full cost of replacing your phone. You can check with the issuer of your credit card used to make the purchase and see if they have any options if your device was stolen.
Sorry this happened to you.