Is it possible to reset my Face ID on my IPhone 13

Hello. Yes, you sure can.

Follow these steps:

Open Settings > navigate to Face ID & Passcode > Tap “Reset Face ID”

Additional Article: If Face ID isn't working on your iPhone or iPad Pro – Apple Support

See points #7 and/or #8 in this support article:--> If Face ID isn't working on your iPhone or iPad Pro - Apple Support

Regards

Giulio