Get a mentor.
Why?, because most people who are making films in Australia are doing so for the first time. Get a mentor, someone who has done it before, someone whose advice you trust.
One thing I have found is that I don’t know everything. That there is always someone else who has done it before. The success of IBM wasn’t that they invented great machines, it was that they copied good ideas and could sell them.
Do the same, learn from other peoples mistakes.
My advice is to any one in business, including the film business, is not get emotionally attached. Be prepared to walk away if you have to.