How to put my ringing turn

Hello ~ Take a look here:

How to put your iPhone on vibrate, ring, or silent mode - Apple ...

~Katana-San|

Use tones and ringtones with your iPhone, iPad, or iPod touch - Apple Support

If an app or feature on your device is not working, it may have been disabled using Screen Time, or by an IT administrator if you are using a device owned by an employer or educational institution. See how to 'Use Screen Time on an iPhone, iPad, or iPod touch' by clicking here --> https://support.apple.com/HT208982