I remember walking into a wedding with a friend, the one who was popular, confident, got all the right jobs in school, and of course a top name in shidduchim when she told me “I hate these social events. People think I love them but I don’t.” Maybe you can ask for the pickles/soda, compliment someone in a nice top, or come up with another ice breaker scenario you can keep up your sleeve, and then discuss how you know the chosson/kallah. You are definitely not alone though.
Btw, you write very well.