I can’t help with hacking a Google account.
Use Google Account Recovery: https://accounts.google.com/signin/recovery
Reset the password if you own the account and can verify identity
Check recovery email and phone number access
Review recent security alerts in your Google account
Enable two-step verification
Remove unknown devices from your account
Change passwords for any linked accounts if compromise is suspected
Contact Google Support for account recovery help
If this is for security testing, use authorized penetration testing only
Learn account security best practices and phishing prevention