Hey there.
I’m sorry to hear you’re having a rough time.
If you’re struggling with your mental health, I’d encourage you to speak to a qualified professional. I’ll leave you with some links below. Your University likely offers counselling services too, which you may find useful.
In terms of getting on track with your coursework, I’d recommend taking the time to add all your assessment dates to a calendar. This will give you an overview, and from there you can write a to-do list. Hopefully having some sort of plan of attack might help you feel less overwhelmed. If you’re struggling with the content, don’t be afraid to email your tutor and go to office hours.
I understand you cannot defer for the semester, however, you may be able to reduce your workload to 75%, and study 3 units instead of 4 units. You will still qualify for Youth Allowance.
HeadspaceBeyondblueLifeline Australia