Going to a work party alone

So tomorrow night I am going to a work party alone.

I never met anyone in person before since I started the job online at home working from home and thought it would be a good idea to go.

My boyfriend can’t make it because it’s his sisters birthday and he doesn’t want to miss it which I get.

I don’t know anyone honestly and no my anxiety is through the roof as I feel like I won’t have anyone to talk to lol. Any advice?! Should I just not go and bail? Should I say I’m not feeling well?

I’m used to this type of stuff and have gone to things along before but this time I don’t know anyone. Should I still go?