Sorry to hear about the circumstances.
You've probably done all these things but...
What about talking to your bank directly? Have you discussed your change in circumstances with them?
What about an overdraft or extension to it? Or a personal loan from them?
Have you looked at the loans comparison on the main site (I'm guessing you have).
If you have other outgoings, you may be able to discuss that you are having trouble making payments as you have been on sick leave, but now are back at work, and need to reduce your bills until payday.
You could discuss this with your landlord also, and you may be able to do something about the rent.
I know it is hard to ask and you probably want to stand on your own two feet, and your parents might not have the money, but a loan from friends or family might be another way. If you can treat it as a normal loan, to see if they would be able to do this.
I'm not sure if you have a chance of getting your money back... probably not. There are some other threads about this.
Good luck and I hope the person that assulted you gets whats coming to them. You may be able to take them to court if they are caught for loss of earnings!
Sparky.