Hi Rod 04,
It must be very hard for you, I'm so sorry to hear about your challenges.
But it's good that you have a support worker. I guess you have complex life challenge and turn to alcohol/drug for easing the pain. Usually, if you still capable to navigate and access different resources for help, the support worker will just refer you the resources and encourage you to contact by yourself. But if you feel it's too hard for you, they should also be able to do something more for you, which is, to help you contact difference resource and arrange necessary meetings. If you have such need, please do not hesitate to let your support worker know.
Also, I fully agree with Katyonthehamsterwheel, that if you feel overwhelming, or have an idea of harming yourself, please to not hesitate to give a call to beyond blue hotline immediately. If you feel even worse, please call CATT (the crisis assessment and treatment team, like triple zero in mental health), this link of CATT should be helpful: https://www.healthdirect.gov.au/crisis-management