AM after PM

Hi I am just wondering whether the public hospitals in Victoria schedule AM shifts after PM shifts????

When I was doing my placement I had heaps of days where they rostered me AM after PM shifts Gosh it was so hard, without proper sleep I was feeling exhausted during my AM shifts…

Now I am so scared to start my grad program knowing that this could happen

Is there ent extra payments for these shifts??? Or can I request not to roster like that?

Tia❤️