Any tips ?

I’m going to my first wedding as a guest. I was invited because my boyfriend is going to be a groomsmen. Because of how the wedding is set up, the wedding party will sit all together, this means I’m going to be alone. Also, I don’t even know the people that are getting married or anyone that will be there. Any tips? Im not sure how exactly a wedding is done and I’m worried I’m going to be by myself the whole time. The worst part is that I have a very difficult time talking to new people and won’t be seeing my boyfriend. What should I do? Should I go to the wedding? Has anyone been in a similar situation ? Am I overthinking it?