Use these steps to reset it and regain access to your account.
Solved] I Forgot My Apple ID Password and Can't Reset It
How to Reset Your Apple ID Password
Keep your Apple ID secure on iPhone - Apple Support
How to Reset Apple ID Password. How to reset your Apple ID
If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support
3 Ways to Reset Forgotten Apple ID Password on iPhone
How to reset Apple ID password - 9to5Mac
Get a verification code and sign in with two-factor authentication - Apple Support
Set up your iPhone or iPad - Apple Support
Forgot my password and can't reset my pas… - Apple Community
Forgot Apple id Password? How to recover Apple id password ?
How To Reset Apple ID If You Forgot The Password
Change your Apple ID password - Apple Support (CA)
6 Ways to Reset Your Apple ID - wikiHow