I don't know whose apathy you are referring, and can't tell from your post if you are depressed. To get into the psych ward, you need to convince your doctor or professionals in the emergency department that you are a danger to yourself or others. You can't just waltz in there because you're impatient with your treatment.
In the ward, you can't have anything metal or glass, or sharp plastic. No electronics. No shoelaces or belts. Take about 3 days worth of clothes, underwear, socks, pjs, a robe perhaps (no belt) (you will be allowed to do laundry under supervision in the ward). When you enter, your luggage will be searched, and you may get a quick body search.
You can't have wire-bound notebooks, but it's good to have a pad of paper for notes and questions for your doctor. I always take a good novel. Leave the Goth and Vampire themed novels at home, because they won't let you keep them. No snacks or candy.
I have stayed an average of 7 days when in, but I think in 'Oz it's more like 3. You won't HAVE to take meds, but staying is pointless if you don't get stabilised on a medication. Make sure to ask your doctor to give you something like Ibuprofen PRN in case you get a headache, and for something to help you sleep. I tried Sonata last time, and it helped a little.
You will be kept pretty busy learning about good mental health coping skills, anxiety, what depression is, group therapy, etc. You will probably be fed pretty well.
Your visiting time with friends and family will not be daily, and may be for only an hour or so on days when they allow visitation. There may be a telephone or two to share with however many people on the ward, and there may not be a way to call out unless you buy a phone card before going in.
You may end up meeting some really great guys who are in your very same situation. I have met some spectacularly strong, good people in the ward.
You will need to tell your doctor you smoke pot, because being without it may make sleeping difficult. Also, it is a depressant. Using it may affect the dosage of any medication youe may get.
Best of luck to you!!