Hello, I'd like to help you with your question.
If you feel your daughter needs immediate care, it would be best to take her to your local hospital emergency room for an evaluation. The doctor there can determine if she might need admitted. Once admitted, the staff can assess your daughter, provide diagnoses and start treatment or change her treatment if her current therapy/medications are not helping her. This is particularly important if your daughter is having suicidal thoughts which should be assessed right away.
If you feel your daughter can wait for an appointment, you can contact someone here: http://mhsa.aihw.gov.au/home/. You can also find a therapist for her at http://www.goodtherapy.com.au/.
Your daughter can also see her regular doctor. Although that is not ideal if she does need medications to control her symptoms right away, then her regular doctor can prescribe them for her until she can see a mental health professional.
I hope this has helped you,