Good luck, deep breaths, I know you probably won't believe me :D , but once you find out your results and you get your treatment plan, things will be clearer and you will get on with it.
You'll need support so do take advantage of our health system . I had health insurance but was diagnosed through Breast Screen so went through the public system and its been fine. Not that I want to sadden you further by talking about $$$$$ but out of pocket and gap payments do add up.
You're now eligible too for 5 Medicare funded allied health appointments per year. So if you need to visit a physio , podiatrist, nutritionist,exercise physiologist you can organise the plan with your GP with small or no out of pocket expenses.
And of course there's now the 6 visit mental health plan where you can see a psychologist ,funded by Medicare with around $60 or less out of pocket. If you need more, your GP can then organise another 4 visits.
Thinking of you !