Please help me recover my face id

To try to get Face ID back on, you must follow the instruction in the link above your post. I’ve copied the pertinent part here:

1. Update your iPhone or iPad to the latest version of iOS or iPadOS.
2. Check if there is an issue with Face ID in your iPhone's parts and service history. To do this, open the Settings app, tap General, then tap About.
3. If you still can't enroll your face or unlock your device with Face ID, you can take your device to an Apple Store or Apple Authorized Service Provider, or contact Apple Support about your iPhone or your iPad.

Only a trained technician should service your device. Improper repair, modification, or use of nongenuine Apple components in the laser systems might prevent the safety mechanisms from functioning properly and could cause hazardous exposure and injury to eyes or skin.

You have posted to a user to user community forum. We are not Apple. To contact Apple directly, tap the link in #3 above.

Hello ~ If working back through the steps in the article you came from doesn’t help you may need to have your iPhone checked…

Genius Bar Reservation and Apple Support Options

And…

If Face ID isn't working on your iPhone or iPad Pro - Apple Support

Also you may go to lower left and click on Support.

~Katana-San~

Sir, please recover my fetch ID 🙏🙏🙏🙏