1. Personnummer >> Samordningsnummer. Congrats kid, you've made it.

1a. Next step is to immediately get yourself an ID card from Skatteverket.

1b. Then get yourself a Swedish bank account, if you don't already have one.

1c. Australia has a reciprocity agreement with Sweden, if I understand it correctly, so it might be worth your while to fill out: https://www.google.se/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&cad=rja&uact=8&ved=0ahUKEwjnm5iShd7VAhUqIpoKHXvmATsQFghPMAQ&url=https%3A%2F%2Fwww.forsakringskassan.se%2Fwps%2Fwcm%2Fconnect%2Fd977fbe5-b805-4771-97a2-073d9d17fc8d%2FFK5456en_014_F_002.pdf%3FMOD%3DAJPERES&usg=AFQjCNG7heZpVTM2piyi6iNI6THe3LXuFA and apply for a European Health Insurance Card. It's really useful if you need health care in another EU country, and it also establishes contact between the Försäkringskassan and yourself.

1. Does your Swedish partner have a job and their own apt? Then they'll probably be able to sponsor you for a sambo visa. This is the easiest way in.