i forgot my apple id

The support article If your Apple ID is locked or disabled - Apple Support has solutions for two frequently encountered reasons for an account to be disabled/locked:

● If a message says "your account has been disabled in the App Store and iTunes Store" or "You cannot login because your account has been locked", then you must contact Apple; you cannot resolve this yourself. Apple provides a link for this specific issue. Tap or click here ➞ https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362 .

● If your account has been disabled for security reasons the solution is to reset your password as outlined in this document: If you forgot your Apple ID password - Apple Support

If you find you can’t sign in, reset your password, or receive verification codes, you can request account recovery (read this support article: How to use account recovery when you can’t reset your Apple ID password - Apple Support ) to regain access to your account. For additional assistance from Apple Security, read: Contact Apple for help with Apple ID account security - Apple Support

If it's another reason then post here with details.

Typically an Apple ID is an email address you have used. If you are currently using a mobile device that is logged into your account, go to Settings and tap your name at the top. Look in Keychain, and in a browser's security settings if you use it to automatically sign into Apple when using a browser.

This support article describes ways to find your Apple ID --> If you forgot your Apple ID email address or phone number - Apple Support

or go directly to this link --> https://iforgot.apple.com/appleid

If you still need help:

Contact Apple for help with Apple ID account security "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."

Contact Apple for help with Apple ID account security - Apple Support

This support article has a list of things to do if your iPhone, iPad, or iPod touch is lost or stolen. --> If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support