I've spent most of my Wednesday evenings this year (well since April), in Devonport at the Michael King centre, as part of an advanced writing course with The Creative Hub. In an earlier post I mentioned the good points of being part of a writing group.
This course has been part learning experience through workshops with New Zealand writers, and also learning through sharing work with the others in the group and getting feedback from them. It has helped me tremendously with editing a 3rd or 4th (I don't remember) draft of my second novel.
I'd urge anyone who writes to join (or start) a writing group, or find a course like this. It's invaluable for finding out what works, and what doesn't.