My phone is cracked n it started glitching. How do I stop it from glitching?

The only place to get a screen replaced with a genuine Apple screen is from an Apple store, mail in to Apple, or Apple Authorized Service Provider. Use the Contact Support link at the top of this page to arrange a repair. If anyone other than Apple replaces it some functions will cease to work, including True Tone and automatic brightness, and on an XR FaceID.

Get the cracked screen replaced.