Hi Vanishing,

I wasn't much younger than you when I was first diagnosed with depression, many of my lunch hours were also spent in the library or a quiet place as I felt that isolation from my peers. Big Hugs. You are not alone.

Can you talk to your Dad? If not, how about making an appointment to see your local GP? I am also in Australia and a GP can assess your mental health and perhaps give a referral to see a psychologist or a counselor under a mental health access plan, this is also covered by medicare. This could also make speaking to your dad about what you are going through much easier.

Keep posting here, this place is here to support you and you are more than welcome to PM me if you need to talk about anything

Take care