You can only view a private YouTube video if the owner explicitly shares it with your Google account
Ask the video owner to add your exact Google email address to the video’s private sharing list
Make sure you are signed in to the same Google account that was granted access
Open the private video link while signed in
If you still cannot view it, ask the owner to confirm the video is shared with the correct account
If the video is only unlisted, use the direct link provided by the owner
Do not use third-party tools or bypass methods to access private videos