Good for you, go and have a great time!...It's usually the case that you get distracted and anxiety diminishes. I bet you have a great time and this could be a stepping stone in confidence to try other things.
It's doing things like this that create great memories, when we avoid things we miss out on making good memories and at least for me, it's good memories that make life special....now go and laugh till your face hurts!!!
Stop fighting your symptoms, tensing against how you feel, trying to push your symptoms away. Don't spend everyday going round in circles trying to figure it all out. This just adds more stress and anxiety to how you feel.
It is your desperation to rid yourself of how you feel that keeps your anxiety alive.
The less you fear your symptoms, the less they mean.