Youtube Embeding to large

Have you just tried to include https://www.youtube.com/watch?v=pMHKzR_1W7s in your post (Embeds) instead of using an iframe?

Yes- no luck- see https://carolemckeracher.com/video-and-audio/ i can see wordpress converting in to the video on the editor however when i view the page it just displays the link.

Try this version:

[embed]https://www.youtube.com/watch?v=pMHKzR_1W7s[/embed]

No luck its still pretty huge. Any other ideas you may have?

Your theme/ plugin is using a method to make your video responsive, i.e respond to the browser size. This is why your video is massive. Have you tried the basic debugging steps like deactivating plugins to explore whether any could be responsible?

Um, i might contact the theme as unistalling all my plugins has no success. Thanks for all your help so far.