About to become homeless with a child with cancer

To say our family has bad luck is an understatement,  almost 4 years ago our beautiful bubbly little boy was diagnosed with cancer, it's been a constant struggle emotionally and financially.  2 years ago I was diagnosed with cancer and haven't been able to return to work. In February this year my husband was held at knife Point and our car was written off in a police incident and we where uninsured.  Today we are still with out a car and fighting the police insurance Company who are not wanting to take responsibility and with out a job I can't get financed to buy a new one which is our only family car and means of getting mason to his treatment in Brisbane. Then to top it off, we where given notice by the estate agents that our unit we are renting is going on the market to be sold and our lease which is now up not being renewed.  I am utterly at a loss of what to do or where to go to next. On top of all of this stress my father passed away a few weeks ago and I'm trying to come to terms with him no longer being here.  I'm not sure how much more I can take. I hate asking for help because I know there are so many other families in the same boat as us,  Staring down the barrel of homelessness,  if there not there already.  Thank you for taking the time to read this and with any help