Olivia, 25, a pothead, decides to hitchike from her home in Sydney to Cairns via the A1 coastal highway to see her estranged mother after her father fires her from his restaurant hoping she'll do something more with her life and quit cannabis.

After loosing her job, an unmotivated stoner hitch hikes across country to make peace with her estranged mother..."

Simplify your concept down to it's core..

What is the urgency ??
What is she risking ??
Why is she seeing her mother ??
Why does she have to quit drugs ??

Define character weakness and not be repetitive..

Happy writing :D

Tor

Maybe make it crystal meth instead of the ol' devil's lettuce because everyone and their dog smokes in Australia. Awesome idea and roadtrip films are always an excellent setting for people finding themselves and what not, but if you center it on marijuana, people will shrink away and think it's preachy. Or not.

a1 high way reeks