Hi @Rama and welcome to the forum. 
Relationship breakups can be so painful. Sorry you are feeling a rise in depression and anxiety at this time. I would recommend going to your GP if you already have one, or to find a new one if that is needed. They may be able to refer you for some Medicare-subsidised therapy with a psychologist. Being able to talk to someone expert in helping with mental/emotional pain may be of assistance to you at this time.
For a number of years now, I have been getting 10 psychology sessions per year for free on a GP referral. Some psychologists may charge a small fee on top of what is subsidised by Medicare but this is usually a small enough amount to be affordable for most people.
Wishing you well and hope the forum is helpful to you, as it has been for many of us here.