I try to avoid eye contact, secretly wear earbuds so that the noise doesn’t overwhelm you as much, that’s the most I can think of to help since you don’t know anyone

I would say that you should try to internalize your fear. I myself am very self conscious of what I will be around other people. Don't worry about the other people around you. And if you feel too overwhelmed then take a breather and sit down for a moment. But remember that you are perfect in every single way. So don't be afraid to be yourself