What Should I Do?

Lately.. Tak happy.. Why? Cause of some stuffs.. Friends.. LoL~ And of course.. When I realised this is already my 3rd year in Brisbane.. I realised I did not gain much... Besides education... I didn't really get to know many friends.. Still stick to the same gang since 1st year... Aiyoo~ Social reject la me~ Haha.. Was wondering whether should I go on with my plan? That is to continue working in Brisbane and get PR (Permenant Resident) here... After 2 years or so.. Then proceed with my Master Degree in UK... Or... Go to UK for my masters straight after I graduate.. One thing in consideration.. Sis is planning to come over next year... And end of this year I am gonna graduate.... Any suggestions?