Sign in to YouTube with the account you want to delete
Go to your Google Account settings
Open Data and privacy
Scroll to Your data and privacy options
Select More options
Click Delete your Google Account
Verify your password
Review the information shown
Follow the prompts to confirm deletion
If you only want to remove YouTube content, go to YouTube Studio
Delete your videos, playlists, comments, and channel content
If you want to hide your channel instead, choose to make it private or remove content without deleting the Google Account