Call the police, take a video of them for a few seconds to get all their faces, send it to a friend.
While the phone is sending the video, i proceed to use their testicles as my own personal punching bag, hopefully preventing them from further damaging the gene pool before i get my ass beat into a pulp.
After they've left and i'm lying in a pool of my own blood, the police would show up.
Thanks to my glorious iPhones HD video the attackers are identified, at which point they get sent to jail and sued, and i get government pay and the local cops develop a liking to me, which means i get a enough money a week to rent my own house and pay all my bills, while any police who pull me over will give me a warning, and the woman who i helped would probably give me some reward, all while the muslim community in Sydney and Newcastle give me massive props and i now get free falafel and kebabs in a stack of places.
This is all assuming i'm just walking randomly in the middle of nowhere with only the stuff i usually carry on me. If, however, my car is close by, i would be showing back up to the scene with a nice large chunk of steel and smacking their heads in until their brains are drying in the street, and then i would flee the scene before anyone gets my face or the police show up.