If you go, is there anything you can do different that will change the usual outcome? Maybe you could take the initiative and talk to other people first? Before you go, could you work up a list of topics you can talk about? Is there anyone there who might share any of your interests? And you don't have to stay there a long time, if you don't want to. Stay as long as you're comfortable and don't feel that you have to stay a certain amount of time, even if you're the first to leave.
_________________
Your Aspie score: 152 of 200
Your neurotypical (non-autistic) score: 47 of 200
You are very likely an Aspie