Join a group of romance writers. You can go to Romance Writers of America and probably find a chapter near you, maybe. Not sure if there is some similar group in Australia, but the RWA organization has online training classes (usually less than $50), writing contest, and online groups where you can ask questions and have those published mentor you.
I joined RWA and the Alabama state chapter, Southern Magic. We physically meet once a month and they bring in someone to talk or do a training session. I've learned a lot from the group in the last 2-years that helped me learn the craft (still learning) and built great friendships with like-minded people.
TNBW is great for establishing critique partners and learning the generic craft of writing, but you still need the human touch with others. This is by far the best critique process out there, but I already had my book written before I started posting. I don't believe in writing by committee; I believe in writing the story on my heart and in my head. Then edit, re-write, edit, re-write, edit, re-write, ect... I've read and been told that the first novel is the hardest to write. After that, the others are much easier because of everything you learned.