Sorry to hear about your situation.
It is obligatory on the man of the house I.e. the husband or father of the house to provide for his family. Pls refer to the link below and read masalah no.2421 (last ruling under this) http://www.sistani.org/english/book/48/2349/
To further solve this issue I would suggest:
1) Find an intermediary to speak to your father and let him know of your hardship. That may change things.
2) If you're eligible to find a job, then that could be a helping hand and can also make you responsible for the coming future.
3) To resolve the issue with your mum, you should seek some family counseling or get an elderly to speak to both. I hope your hardship is resolved