How to unlock Iphone SE if you forget the password
What are the steps to unlock an Iphone if you lost the password
iPhone 12 Pro, iOS 17
The Lock Screen passcode?
If you forgot a passcode that you changed within the last 72 hours, see the following for instructions: Temporarily use your old passcode when you forget your new passcode on iPhone or iPad - Apple Support
Otherwise, there is an Apple article that explains what to do if you have forgotten an iPhone or iPad passcode. Click on the following link: If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support
If that is not an option, you will need to use a computer. See: If you forgot your iPhone passcode - Apple Support
Or the Apple ID/iCloud password?
There is an Apple article that explains what to do if you have forgotten your Apple password. Click on the following link: If you forgot your Apple ID password - Apple Support