Been there done that. I have had this happen a number of times and still to this day I scratch my head wondering why. Two of the jobs were roles I did I could do from anywhere in the World. It didn’t matter that the Company was moving interstate.
The advice given to me was you will find a better job. And yes it was true because of the training and experience I have. I still get offers via Linkedin so make sure your Resume is up to date and use lots of key words with hashtags on your Profile. Good luck

I am really sorry this has happened. I haven’t been in this situation so couldnt fully understand what you are going through, but understand it must be really overwhelming and I have supported a few friends through this so can offer some practical pointers.
– you can apply for JobSeeker straight away even if you are serving a notice period. Centrelink can take a long time so it is a good idea to get on this straight away.
– if you have a mortgage you can contact your bank to move to interest only repayments and also ask for a more competitive interest rate
– depending on the type of role you do, consider going in and talking to people rather than waiting for a job to be advertised
– this must be truly overwhelming. Make sure you take care of you. If you need extra support you can get a mental health care plan from the doctor where you are able to see a psychologist for 6 sessions under Medicare.
– Airtasker may be able to give you a couple of temporary boosts
– I have seen lots of data entry ads around but I don’t know the legitimacy of them.

It’s so disheartening when it happens. It only happened to me once in my early 20s, the store went onto liquidation. I was lucky my boss gave me some cash to hide away from the auditors who were in store so I actually got my last pay. Hopefully you can find work in your industry quickly, or something small to make due until then. Wishing you luck