Hey @Eugene welcome to the forums! Hope you find it to be a warm and welcoming community.
I'm sorry to hear about your son's situation, that's so heavy. It sounds like still a relatively new diagnosis? It could be he's still processing the news, or is perhaps in denial and not ready to acknowledge it, let alone seek professional support for it. At times, the hardest thing for a loved one of a person with complex mental health is feeling helpless and frustrated when they refuse to seek or engage with support. Sometimes the best thing we can do is focus on ourselves and our own mental health, until that person feels more ready. Do you have any mental health supports in place?
Just in case - if his anger does ever turn to aggression and you worry for your safety, or you're ever worried that he may harm himself or someone else, please call 000 straight away. You can also reach out to:
Your local CATT - See this link for details/which number to call based on your location
1800RESPECT - Family Violence hotline
Lifeline - suicide and crisis helpline
And for non-crisis support, feel free to buzz SANE's Support line - 1800 187 263; Mon-Fri, 10am-10pm, or for ongoing support check out our Guided Service. The counsellors are a lovely bunch, and it always helps to be able to get stuff off our chest 😉