Hopefully i am. First time at coachella. First time in US. First time outside of australia. Dont know how im getting to america or when, where im staying or for how long, However we Australians know about the heat, the desert and camping so im set for those 3 days of my trip! Only thing is im alone so i'm hoping to make some friends! Be friendly!
Being an Australian overseas is awesome. People instantly like you for some reason. You should be fine.
If all else fails there will probably be a meetup, and if you get homesick and you aren't a complete moron me and my scottish counterpart will keep you amused.