So tomorrow a close cousin is getting engaged and the thing is I have never met him (yeah, I know sounds dumb) . Now, I'm not at all chummy with the relatives on my mother's side except one or two. Tomorrow there's going to be a google meet or something like that in which all the people are going to attend the ceremony virtually and it's awfully compulsory to show my face on the screen and greet the people. No other option, nothing. And it's sounds stupid but when this social gathering  happened once before , I started to just tremble and stutter and then ran away from the screen without speaking to anybody. And the thing is I'm trembling now and very soon it's going to be the tears coming in. Family won't understand. So please is there anyone who's been in a similar situation and got out in one piece? Please any advice, I'd be so grateful. ( Indian btw, so relatives judge a lot (╯︵╰) ) 

TLDR; virtual social engagement with lots of strangers, and then the doomed social anxiety. Saying no is not an option . Utterly thankful for any advice.