My Mack book

By "lock mood" are you referring to FileVault? If so, and you forgot the FileVault password, and cannot locate the backup recovery key, any data on this drive will not be accessible.

Ref:

• Use FileVault to encrypt the startup disk on your Mac - Apple Support
• How to find your FileVault recovery key in macOS - Macworld

Apple Guidance:

If you can't unlock your Mac

If you can't remember the passcode, you have three options:

• Sign in to iCloud.com/find, then select your Mac from the Devices menu. Select Unlock and follow the steps to verify your identity.
• Unlock your Mac from your iPhone, iPad, iPod touch, or Apple Watch using your device passcode.
• Take your Mac to an Apple Authorized Service Provider along with your proof of purchase.