How do I make my iPhone have the same iCloud and FaceTime account Cannot make a call on my iPhone so how do I merge them?

If you are signed in with one Apple ID on your iPhone and using another Apple ID for iMessage and FaceTime, you may experience issues with synchronization and functionality. To correct this, you can follow these steps:

Settings > Apple ID [Your Name] > Sign Out

Settings > Apple ID [Your Name] > Sign In with a correct Apple of your choice

1. Follow this in sequence as given below
   1. Settings > Messages > iMessage [Disable]
   2. Settings > FaceTime > Face Time [Disable]
   3. Settings > Messages > iMessage [Enable]
   4. Settings > FaceTime > Face Time [Enable]
2. For iMessage, you can choose the phone number and email addresses associated with your Apple ID under the "Send & Receive" settings.
3. In FaceTime, you can select the phone number and email addresses under the "You Can Be Reached By FaceTime At" section.

By signing in with the correct Apple ID for iMessage and FaceTime, you should have consistent functionality and synchronization between these services. Make sure to test sending messages and making FaceTime calls to verify that everything is working as expected.