my device is stolen.. and i m not sure about my apple id pw .. how to find it

If your iPhone has been stolen and you're not sure about your Apple ID password, you have a few options to try and locate your device:

1. Use Find My: If you had enabled Find My iPhone before your device was lost or stolen, you can use this feature to locate your device. Here's how:

• • Go to iCloud.com on a computer or use the Find My app on another iOS device.
  • Sign in with your Apple ID.
  • Click on "Find iPhone" or "Find My" and select your lost iPhone from the list of devices.
  • If your device is online, you'll be able to see its location on a map. You can also remotely lock the device or erase its data if necessary.

1. Contact Apple Support: If you're unable to locate your device using Find My iPhone or if you don't remember your Apple ID password, you should contact Apple Support for assistance. They may be able to help you recover your Apple ID or provide additional guidance on what to do next.
2. Report Stolen Device: It's important to report your stolen device to the police and to your wireless carrier. They may be able to assist you in recovering the device or preventing unauthorized use of your phone.
3. Change Your Apple ID Password: If you're able to recover your Apple ID or reset your password, make sure to do so as soon as possible to prevent unauthorized access to your account and personal information.

Remember to take precautionary measures such as enabling two-factor authentication on your Apple ID to enhance the security of your account and devices in the future.

Look here -

If your iPhone or iPad is lost or stolen - Apple Support