(28M) How long until things get better??

It's been 2 months since I had a surprise separation from my wife, I didn't even know she was even unhappy. I have a 1 & 3 year old at 50% custody & I still have to pay child support. (I hate the Australian system).

If I try & make more money to compensate my child support just goes up.

I've had to drop out of University & close down my gardening business (due to a lung issue).

I feel financially cooked with a lack of career options.

I started anti-depressant immediately after separation with no improvements.

How do I unfuck my life??