How To Delete YouTube Comments
To delete a comment on YouTube, sign in and go to “Your data in YouTube.” Select “Manage your YouTube Comment History” to see all your comments. Find the one you wish to remove, click the three-dot icon, and choose “Delete.” On mobile, access the same via the YouTube app under your profile. You can also delete a comment by revisiting the video directly. Once deleted, your comment is permanently removed and no longer visible to others.