The DECYP website has a great lists of services and supports to help you in an emergency, or if you or your kids just need to talk to someone about your safety or the safety of someone you know.
The Crisis Support links/contacts are shown below, extracted from the DECYP website.

Crisis support

Lifeline – access to 24 hour crisis support and suicide prevention services for anyone experiencing emotional distress with. Call – 13 11 14 or text or chat via the Lifeline website. 
Suicide Call Back Service – 24/7 phone and online counselling for people impacted by suicide. Call – 1300 659 467 
Kids Helpline – confidential 24/7 online and phone counselling service for young people aged 5 to 25 years. This service is free from mobiles as well.Call – 1800 55 1800 
Beyond Blue – mental health information and support available on the Beyond Blue website.Call to speak to a counsellor – 1300 224 636 
13YARN – 24/7 national crisis support line for Aboriginal and Torres Strait Islander people who are feeling overwhelmed or having difficulty coping. Call – 13 92 76 
For their full lists including the following, click on this link to go to the website.

• Reporting concerns about the safety or wellbeing of a child
• Child Sexual Abuse
• Family and Sexual Violence
• Mental Health and Wellbeing supports provided through schools
• Other Community services