Youtube iframe without connection to main site

Question

I am producing a event on my website that involves use of livestream, tried using nginx with ngrok to broadcast but i'm having some issues (the number of people watching will be ahead the limit of ngrok, around 700 people) so i decided to use youtube live streaming, the problem is that i want my stream to be watched only in my website, i don't want it to be watched on youtube and i don't want to my watchers to be able to copy my stream link to other people(watch only). I have some knowledge in html/css, i tried to manipulate the iframe tag to be able to lock the player to user, but without success, even throught i created a container to block any click to the player, the player need a first click to play the video, can someone help me?

here is the div code i am using right now:

 <iframe src="YOUTUBELINK" title="YouTube video player" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" style="position:Relative;" width="100%" height="480px" frameborder="0"></iframe>

Answer 1

If you want to be able to not necessarily go through the code, you can always use Youtube's autoplay, users will no longer need to click to launch the video from the iframe.

 <iframe src="YOUTUBELINK?autoplay=1" title="YouTube video player" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" style="position:Relative;" width="100%" height="480px" frameborder="0"></iframe>