Am I wrong to not wanna go to a friends wedding?

I have known my friend(1) for around 8-9 years from high school. We go on trips overseas, in the states, and basically talk everyday on social media with our mutual friend(2). Well she is getting married in 2 weeks and I am not allowed a plus one, obviously becuz I am not married to my boyfriend, but I was fine with it becuz neither I or our mutual friend(2) were bridesmaids so we would be able to sit with each other. I dont know anyone at her wedding, she is from another culture that values religion and family and her whole family from overseas is coming in and her friends from church will be there as well. I wont know any of them. So recently one of the bridesmaids dropped out and friend(2) was asked to fill in, and of course she says yes. Leaving me alone with my crippling anxiety and mild depression(which i just started getting over). I avoid situations like this like the plague because I have the worse anxiety attacks especially since I choose not to take medication for it anymore. Being her only non-religious friend I already get a lot of judgement but being around a ton of very religious people and very judgemental “aunties” I will not survive the wedding. I simply would not even enjoy myself while sitting at the table alone and not dancing. Open bar is only for Non-Alcoholic Drinks so i couldn’t even make it even a lil better for me. Now I simply have decided to not go because it is just not my scene and I know i will be very uncomfortable. Am i wrong for deciding to skip it?