How to Delete YouTube History
Log into YouTube in your browser, click on your profile picture in the top-right corner, and select 'Your data in YouTube.'
Scroll down to the 'YouTube Watch History' section and click 'Manage history' to access your activity controls.
Review the history entries or use filters to find specific items, then click the 'Delete' option for individual entries.
To delete a larger set, select 'Delete all time,' 'Delete today,' or 'Delete custom range' based on your preferences.
Confirm the deletion, and YouTube will remove the specified history items from your account permanently.