I would recommend finding a past HSC Paper from 2006 - 2008 if you want to get any solid creative writing questions on Journey.
Even looking at other school's trial paper around that time for English is highly suitable.
BUT, if you want creative writing ideas in general, I've had a lot of fun with this website over the past year just writing fun stories,
http://writers-den.pantomimepony.co.uk/writers-plot-ideas.php (I have no idea who made the website but it's honestly addicting)