sorry to hear that you are feeling this way
we have also been in Perth 6 years and feel at times very much like yourself - I've become friends with ladies from various parts of the world living in Perth and we all have the same experiences - worrying about aged parents back home, older children not sure were they fit, partners who can live off the smell of an oily rag and like there own company therefore don't care were they live !!!
it would be nice to meet up - I'm a good sound board !!!
were in Perth are you ? I'm in the city so can travel north or south