You also have 12 guinea pigs right? Or is it 7? I'm not against owning lots of pets, but when you are relying on your parents to feed your animals, something is wrong. I have to pay for everything for Theo. My parents say that if we want the animal, we provide for the animal. You should consider looking for a job. Babysitting, cooking, cleaning, etc. Right now moms would probably be willing to pay you to babysit because they are tired of staying home with their kids.
I also think you should drop the breeding for right now. Once you get a steady job you can begin breeding again. Mother rabbits need extra care, and it sounds like you can't afford that right now.
Right now, you are dealing with a sick rabbit, a pregnant rabbit, a rabbit who just lost her babies, and 2 other rabbits and a bunch of guinea pigs who don't have enough hay. I was stressed out when I had one sick rabbit, let alone all the other problems you are dealing with.
You and your rabbits will make it through this.