My children's education

Hello, I'm a hard working single mum. My youngest two daughters have been attending a Steiner school for 3 years. I care greatly about my kids education and their cousins also attend this school.
In October this year I quit my long term work at a cafe due to sexual harrasment by my boss. Due to this I now can not afford to pay the school fees. I'm looking to re-educate myself to ensure a better future for my children and I but I don't want to disrupt my kids sense wellbeing by having to change schools as I can't afford to study and send them to their current school.
It costs $7000 a year to send them to their school and my study will take approx. 5 years. Any help at all would be so greatly appreciated. Thank you.